EDIT: THE AMP IS A '72. I wasn't too fussed about the year yesterday when I set up to shoot the video and I misread the upside down reverb transformer date code.
Жүктеу.....
Пікірлер: 182
@PsionicAudio Жыл бұрын
Edit: this amp is a ‘72. You can’t hear the level increase with phone speakers but it’s very apparent with headphones or real speakers. It’s about a 3dB increase with the amp volume staying just over 3. A real playing test would involve turning the volume up and hearing different overtones etc but that was outside the scope of this video. The owner will probably do a final playing video and we can do that kind of fun stuff then.
@ChittysMusicGear
Жыл бұрын
I was about to comment they discontinued that logo on 73. Great vid thanks!
@ViceroyBandOfficial
Жыл бұрын
Yep. Fender removed the word "Amp" from the front panel after '71 or '72.
@grkeith20916 ай бұрын
When the V6 phase inverter is changed from 12AT7 to a 12AX7, the amp reaches distortion in the phase inverter stage before it reaches distortion at power tubes, whereas stock it reaches distortion in the power output stage first. Distortion in the power output stage sounds smoother and more pleasing, less ear-fatiguing to most. Also, that tube-switch-around cuts the clean watts output some as well, which may be a good thing for some folks, as you can then reach output stage distortion (with preamp stage distortion) at somewhat lower loudness. Further, this phase inverter tube change AND pulling V1 can be done to all original black-face and all early silver-face amps.
@Route66Wanderer Жыл бұрын
It’s interesting that so many didn’t get the message of your video and are pushing the idea of using pedals or they’re more concerned about the exact year of the amp. Maybe I’m weird. I was appreciative of seeing the easy way’s of getting more gain. Thank you.
@prtjazz
Жыл бұрын
Me too. I play on a live radio show where there’s a lot of movement on stage and not room for big pedal boards. Been looking for a edge of breakup tone at lower volume so this helps a lot.
@charliehshaw Жыл бұрын
Another great and helpful video Lyle. Thanks!
@tobiasryan8378 Жыл бұрын
Loving the new videos Lyle!
@SlydeChaplain Жыл бұрын
Excellent tips, man! Thank you!!👍👍
@angusorvid8840 Жыл бұрын
Great video. I've borrowed a number of Fender amps for gigs. But one of the best I played was Princeton that was owned by a venue I would play in the mid to late 80s. I would plug my Yamaha SG 200 into it and run a fuzz pedal through it like a Rat and a Boss Chorus. I got more than enough gain for a good classic rock tone. I've owned a lot of Marshalls but Fenders like this just sound like home to me. I prefer good pedal platform amps to high gain amps. You can't beat the warmth of a Fender. The last Fender I owned was a Bassbreaker which was good but too Marshally for me.
@bradcarter6396 Жыл бұрын
Cool! Such a neat trick!
@sgt.grinch3299 Жыл бұрын
Thank you for the insight Sir.
@jfmax2000 Жыл бұрын
Oh This is an Excellent Upload Sir ☺☺😎👊💯 And Yess it is Very Surprising What Seems Like Small Audible Differences in Drive Will Be in a Mixdown.. Thank You for All Your Knowledge and The Amazing Uploads My Good Man ☺☺😎👊💯💯
@giulioluzzardi7632 Жыл бұрын
Have any-one heard or used a little plug-in box called an "Ice cube" it used to plug in to the reverb send / return on the back and this added an extra gain controlled by the reverb knob but you lose the reverb but it was "Epic" !
@cgavin1 Жыл бұрын
I experimented with pulling tubes and dropping the preamp voltage and changing the bias of preamp and power amp etc. In the end I accepted that I liked the base tone of the AB763 as designed and anything I tried moved just far enough away from that so as to sound "different". I think the problem is that one-amp-guys want it all. We want amazing clean (so cool bias, tight speaker), the "advertised" Fender chime, we want amazing edge of breakup (hotter bias, celestion style speaker) and we want ballsy overdrive. Its a hell of a rabbit hole. In the old days I would do what the Old Timers did: turned the amp up to 7-8 and use a 8-9k (and microphonic PAF style pickup) Les Paul with 50's wiring (so pickup loading which preserves treble response when you turn down). This involved positioning the amp off-stage, turning it round and latterly using deflector screens to handle the volume peaks. Now I use a treble bleed equipped Fender or a 50's wired LP in to an always-on "transparent" overdrive like a JHS Morning Glory (lower gain V2) or the Bluesbreaker (reissues are great for Fenders) and a mix of lower MU in V2 and higher MU (V4) preamp tubes. The Phase Inverter tube in an AB763 is were most of your overdriven sounds are fundamentally shaped. So getting that one right is vital. I like a NOS Mullard in there. I find the small bottle 5881 style power tubes grind WAY more than the big bottle 6L6's in the bigger amps. The final ingredient being the speakers. I like a bit of speaker breakup and I find that modern high power speakers don't get in to their sweet spot at usable volumes so can sound dull or "flat" while simultaneously being hellishly loud. So I deliberately use 40w speakers in a Twin or 15w speakers in a Deluxe etc. The other option, especially if you record a lot or stream, is to get an UA Ox. Kid Anderson often uses one of those with a silverface twin and headphones (he uses an IR and no live speaker in the room). Covers everything he does. Sorry for the essay! 🤣 FWIW in my opinion the best and only thing anyone ever needs to make every kind of music is a Deluxe Reverb equipped with a JBL D120F. Just drop the money now and thank me later. 🤣🤣
@lescaster2179
Жыл бұрын
I cheated, did not pass Go, did not collect $200, and bought a Tone King Imperial MkII.
@pharmerdavid1432
25 күн бұрын
I've heard that combo a few times, and don't disagree!
@briggsmech7038 Жыл бұрын
great video Lyle. customers always ask me to mod their vintage amps and Im trying to tell them "dont do it" the amp is doing its job. get a boost pedal if you want more gain. please dont ask me to try and improve an already great design.
@TeleCaster66
Жыл бұрын
I have 2 different boost pedals (a Les Lius clone and the Supro Overdrive) sound natural enough that don't change the character of my Blackface Deluxe to make me even think of modifying the amp, I cherish that amp because it's sounds so good on its own.
@aminahmed2220 Жыл бұрын
What a fantastic video have a great weekend also stay safe
@franktaconelli9095 Жыл бұрын
anyone old enough to remember when most amps had tubes will be aware that, within the lifespan of tubes, there was a ‘peak period’ of performance where they would absolutely sing in warm, rich tones; beautiful, clean sustain that you wished would never end (though, sadly, it did) I would change all my tubes if one went bad so they would all be the same age…my all time favorite tube amp I owned was an original Supro 40 watt…I had no idea what it was but my father, a guitar teacher, used to buy and sell all kinds of gear and picked it up for $50 (in the mid ‘70s) all I knew was that it sounded incredible when full up…I used it exclusively until it blew up onstage in the early ‘80s…let’s quote the bible according to Keith: “The right guitar through the right amp; throw your pedals away” amen (at 65, I now use a 5 watt Bugera)
@prtjazz Жыл бұрын
Really nice. Thank you. Use a 335 and just removing the one tube and is a nice stumble change
@slimsantilli4476 Жыл бұрын
I understand the owner doesnt want to use a pedal. But those that do. An EQ pedal is the best way i have had luck with clean boost. Nice job with your video.
@drewsollars2239 Жыл бұрын
I've been using this trick on a 63 concert I got recently. Works great on non reverb ab763s too.
@PsionicAudio
Жыл бұрын
Yeah, there are other amps it works on but I didn’t want to go through an entire list. Bassman no, Bandmaster yes, etc.
@bonesetter9721 Жыл бұрын
Love the riff Lyle...
@soundofbluesthing Жыл бұрын
Great video! I think that amp is late 1969 (they dropped aluminum trim away) to 1970....'71 if that faceplate is original. There reads "Deluxe Reverb -Amp" That "Amp" word dropped ~'71. Also Fender logo is what they used till early 70s.
@PsionicAudio
Жыл бұрын
But it has a glued in baffle. I didn’t look closely, just saw the baffle and a ‘66/‘76 date code on the reverb transformer. Doesn’t matter as to the point of the video.
@gamjammallota78 Жыл бұрын
Thank you. Great video for all us players. Especially if you're that person who wants to keep their amp stock and free from internal modifications.
@Fenderlove7611 ай бұрын
Fine Video. Thanks!!
@nolarocks Жыл бұрын
Super cool!!!!
@Bodiddley788 Жыл бұрын
Good sounding amp.
@GlennJimenez Жыл бұрын
You make that guitar sound very nice.
@YeatzeeGuitar Жыл бұрын
Good tips!
@CentaurusRelax314 Жыл бұрын
$100 Bugera PS1 Power Soak on my ‘68 DRRi. I *_can_* turn the amp volume to 10. But pedal overdrive is much more pleasing than a cranked Deluxe to me. I’m now of the mind that the Wampler Pantheon is the perfect pedal for my amp.
@larryvickrey111 Жыл бұрын
Thanks!
@jerryking2418 Жыл бұрын
Good stuff.
@camielkotte11 ай бұрын
Very nice. Gives that little breakup at low volume! I have heard this before, been reading about it but am scared to try on my super twin reverb with 6x l6. Don't know which ones to pull or switch.
@Mark70609 Жыл бұрын
Have you thought of doing show/episode on the different PI stages used by the pre 80’s Fender amps? There was a noticeable change from the tweed PI stages to the Brown PI stage, to the Blackface PI and then the silver face PI.
@mikeroadblock Жыл бұрын
Super cool
@douglascrawford47914 ай бұрын
Damn you're good
@yaniv-nos-tubes10 ай бұрын
hi, great video. my secret weapon for two channel blackface amps: a vintage mullard in v1 and a ge 12ax7wa at v2
@voxpathfinder15r Жыл бұрын
I have to admit we pedal lovers have it way easier. We want more gain, or change of eq, compression, etc. We just slap a pedal in front and our problems are easily solved and away we go. Because in the end nobody else gives a poop. I have tried listening tests with a Line 6 in Vox settings and an actual Vox - and nobody could tell the difference. This stuff only matters to the actual player
@oldbluzguy Жыл бұрын
A NOS 5751 in V1 will do wonders for all blackplate Fenders. My 66 Super sounds great.
@r0bophonic Жыл бұрын
Cool! Would a boost pedal have a similar effect? I assume the owner tried that already and didn’t like it.
@Billywagner22 Жыл бұрын
Another mod would be to replace the JJ 6V6 with something with less headroom.
@RDEL54Ай бұрын
Nice video. I did your bias cool down mod for my blues jr it sounds as good or better than stock high bias. What bias range do you recommend for the 65 deluxe reissue? Thanks!
@Felipe-pb9gu11 ай бұрын
Great video! Recommended mods for sure. One question, If I remove 2 power tubes on a 4x6L6 amp and disconnect one speaker to match the impedance, do I need or is it recommended to readjust the bias?
@PsionicAudio
11 ай бұрын
Yeah, make sure the bias is still in a safe good range. Some companies switch without a change in bias but they build in a “safe window” (often with tonal compromises).
@benperry490 Жыл бұрын
I had a device back in early 80’s called an ice cube small blue ice cube looking plastic device that plugged into the reverb tremolo foot pedal jacks it really upped the gain Not sure how it worked but it did
@billbornemann5417
Жыл бұрын
I have the same. Still in the reverb phono jacks of my silverface Twin. There’s some circuitry (buffer?) in it that allows a clean pretty powerful boost depending on your REV knob’s setting.
@terrymcgill77877 ай бұрын
I've watched a few of your repair vids recently....I'm suprised all the common problems the Fender Hot Rod and 68 Custm Reverb have sheesh....is there a smarter built amp brand you prefer compareable to these level Fender amps and there price range? My Hotrod Deluxe 4 is in the shop....do you like the Peavey Delta Blues at all? Thanks
@clausherther Жыл бұрын
Great tip! Would this work on one of the new '68 Deluxe Reverb reissues?
@Cod245 Жыл бұрын
Hi, that is an awesome tip. Great video, I'll give this ago later. Can I ask you a Q? Have you ever made a video on amp Vibrato issues you could link? I have a 65 Deluxe Reverb Reissue and if I engage the Vibrato circuit I hear an audible low freq ticking (without any guitar input). It's not very loud but it's annoying. It also remains when the guitar is being played. Thanks.
@PsionicAudio
Жыл бұрын
Thanks, and yes I’ve addressed that. Usually lead dress. It’s in some of the RI videos, check that playlist.
@Cod245
Жыл бұрын
@@PsionicAudio Thank you so much for responding. I’ll check them out 🙂
@nohillforahighstepper Жыл бұрын
I set a TC Spark on top of my amp and use it to push the OD circuit. The Spark is a very transparent gain pedal. I don't love pedals. But using that 1 pedal, gives me a lot more gain AND I can turn it off in a second to get my sparkling clean tones back. AND I can do the same for my Princeton Reverb too. For pickers that are searching for their signature tone, this vid is definitely the way to go. For those of us that are trying to mimic tones from numerous different songs, probably not the best way to go. 🤔
@cortmiller Жыл бұрын
I have always done the pull v1 truck for my deluxe reverb (66 and 67). And I’ll have to try the phase inverter trick too. Any tips like that for a blackface Princeton?
@Jeffcatbuckeye6 ай бұрын
@psionicaudio this simple mod interests me, but I had a question. Would this be the same result as bridging the two channels together with a patch cable and/or using an ABY switch into both channels simultaneously. I believe it has the same gain increasing effect, but I was curious as to if the pathways dramatically differ. The fenders(and others) have some interesting plug and play mods on the fly for certain sounds for sure.
@RussC123Ай бұрын
Love your videos- you’re such a pro. Question- How is this amp so quiet (noise floor)?? Maybe you have something filtering out the noise through your mic? I have a 76’ DR that’s been serviced and the noise floor certainly improved but it’s nowhere near this quiet running.
@PsionicAudio
Ай бұрын
Thanks. I put a small bit of room removal on my voiceover mic but never do any gating etc on the amp mics. Not even EQ or compression. You hear what the amps sound like. I do videos in 4K so YT uses less compression on the audio so you get a more realistic idea of what the amps sound like. Including noise floors.
@RussC123
Ай бұрын
@@PsionicAudio Gotcha- so maybe how my amp is running is normal then? Again it’s not terrible, just kinda hissy especially when the reverb is on and I get up to 4, 5 and onwards on volume
@PsionicAudio
Ай бұрын
Well, part of my gig is making them run as quietly as possible.
@rolandoo002 Жыл бұрын
Another trick is pulling the V5 if you don´t use the tremolo anyway. This will give you also a little bit more tone. This three tricks pulling V1, changing the V6 with an AX7 and pulling V5, I have done to all my fender amps and enjoy their sound now even more :D
@PsionicAudio
Жыл бұрын
Pulling V5 won’t affect the audio path. But if it makes you happy…
@rolandoo002
Жыл бұрын
@@PsionicAudio Ok - you might be right. To my ears the amp "opens" up a bit more. But could also be the placebo effect ^^
@l8tapex Жыл бұрын
Maybe , see if there are other brands with tricks. You can decipher schematics and would be great content. Marshel, Peavey,EVH, MESA, etc.... start a series of content. Thanks ( i have 67 Fender BF but man its OG and I hate to hurt a OG tube lol)
@batmandeltaforce Жыл бұрын
I'll try this with my FM9.
@shader264 ай бұрын
Cool trick! Only thing I wished was to hear when you then raise the amp volume how different it sounds?
@nicholasbarile5492 Жыл бұрын
Thanks Lyle! On this subject, could speaker choice play a role? If so what speakers might be a good fit for this clients desire for earlier breakup?
@PsionicAudio
Жыл бұрын
Speakers always play a role. This one has a very efficient ET65. But the owner plays this amp up way above 3, while I had it on the bench at ear level for filming purposes. At his actual stage volumes the ET65 is a great choice. There will be a real playing demo of this amp when the owner gets back from a European tour. It will get loud…
@xdoctorblindx
Жыл бұрын
This is a good point. If he wants earlier breakup at a certain volume, a less efficient speaker is a great solution.
@Crunchifyable2 Жыл бұрын
I was always wondering when you do tubes swaps like these, is there a risk of blowing a resistor because the current draw increased? Or maybe that's only when you switch from a 12ax7 to a 12au7 if you want less gain (cough peavey cough)...
@PsionicAudio
Жыл бұрын
Current and voltage changes from minor preamp tube changes are negligible.
@stratman2023 Жыл бұрын
Great video, Lyle. What's your take on changing the 12AX7 phase inverter in a Tweed Bassman to a 12AT7?
@PsionicAudio
Жыл бұрын
It’s a move in the opposite, cleaner direction. Won’t hurt anything. If you like it, it works.
@Mark70609
Жыл бұрын
@@PsionicAudiolower gain, but higher current.
@Nirvana_Replica5 ай бұрын
Hey, I was wondering; during Nirvana MTV Unplugged show Kurt used a Twin Reverb for his 1959 Martin D18e as a monitor, to have more gain on low volume apparently his guitar tech used a 12au7 in the PI / V6 and replaced the 7025’s with 12AX7’s. What are your thought on this? And how would you approach that show with a Twin Reverb as monitor?
@kentdog007 Жыл бұрын
what is your take on the Hicks Fender Mender? I have had pretty good luck with them.
@donald-parker Жыл бұрын
I seem to recall another "mod" involving connecting the reverb out directly to the reverb in, and then using the "reverb" control on the front of the amp as another gain stage. Of course, you loose the reverb effect, but it is easily reversible (arguably easier than pull tubes). Thoughts?
@pharmerdavid1432
25 күн бұрын
WTF?!!
@Weegus2 ай бұрын
Ultraphonix or rockfonix they sound the business.
@ParaBellum2024 Жыл бұрын
You mean I didn't need to splash out big bucks on that original Bad Monkey?
@MarshallCommaDave
Жыл бұрын
LOL seriously though i watch this and its informative and interesting but also, why doesn't the customer just USE A DRIVE PEDAL
@gregbaker9579 Жыл бұрын
Lyle, I thought Fender stopped using the underlined logo on their amps after 1972. I know that is true for Princetons (I have a 72). Did the different models stop using the underlined logos in different years?
@PsionicAudio
Жыл бұрын
I don’t know. I didn’t open this amp up again, just saw a ‘66 or ‘76 date code on the reverb transformer, saw the glued baffle and lack of black lines on the panel, so thought “‘76 or ‘77.”
@macanoodough Жыл бұрын
What about plugging into both inputs? I do that on both mine to get a pretty big boost. But I don't own any Fender amps so I don't know if they work the same.
@121212Guitars
Жыл бұрын
Vintage Fender normal/vibrato channels are not in phase, so the sounds would be working against each other. Then again, if it sounds good, it is good.
@MichaelSmith-rn1qw Жыл бұрын
Are you sure that the amp is a late 70's Deluxe Reverb? From the Fender logo with the tail on the grill and the fact it says "AMP" on the front panel, I would think it is an earlier model. Perhaps the transformer was changed at some point. My 77 Deluxe Reverb does not have the tail on the Fender logo , and also does not say AMP on the front panel. But you certainly have more experience than I do with these amps.
@CianRourke Жыл бұрын
I do not know if you have ever addressed this, but what about pulling one power tube. A friend of mine did that 35 years a go to a Pro Reverb. Safe?
@PsionicAudio
Жыл бұрын
No, and it sounds awful. Push/pull output sections are better than just push or just pull.
@CianRourke
Жыл бұрын
@@PsionicAudio Thanks much for the insight.
@martijn_yt8 ай бұрын
I am confused how it is possible to have more gain (or volume) by removing a tube ? Wouldnt that reduce the gain ? (but at the same time also reduce headroom in the preamp , creating breakup at a lower bolume ? )
@PsionicAudio
8 ай бұрын
V1 and V2 share a cathode on their second triodes. So pulling V1 gives V2 a gain increase because its cathode R effectively halves.
@TheDustinPeterson Жыл бұрын
Any mods like this for a fender super reverb RI?
@GuyNarnarian Жыл бұрын
What would be comparable "mods" on a Princeton? Can you pull the 12at7 in V2? or even a 6v6 power tube with no issues? If you pull a power tube I would think it would need to be re-biased.
@PsionicAudio
Жыл бұрын
There aren’t any comparable mods on a Princeton. And never pull odd numbers of output tubes in any Class A/B amp (and only pull even numbers after much research).
@GuyNarnarian
Жыл бұрын
@@PsionicAudio I wasn't planning on it - just curious. I know sometimes people will remove 2 of the power tubes in a Twin. Princetons get fairly gainy around 4-5 with humbuckers anyway.
@sam_uelson Жыл бұрын
Can you do this with a hot rod deluxe?
@lucyfuir6386 Жыл бұрын
I've never had a 2 channel Fender amp but can you jump the channels with a patch cord like a Marshall
@robertbrown2728
Жыл бұрын
You can on my 68 custom DR but I don't think you can on the original ones. I think it's because the two channels are in phase on mine but not on the early ones.
@lucyfuir6386
Жыл бұрын
@@robertbrown2728 I was curious because the Marshall is a rip-off of a bassman. My 65 Princeton reverb is just one channel and all my Marshall's are newer. So I've never even done it. Just seen it done
@michaelcraig9449 Жыл бұрын
Why is it the amps are always set with treble and midrange about 5-6 and bass about 4-5? Wouldn't there be more and better tone, if the treble and mids were up about 9 or so and the bass about 6-8, therefore providing more tone?
@PsionicAudio
Жыл бұрын
You’d have more signal but less control over the frequencies. Don’t sweat it - there’s an additional gain stage after the tone stack to maintain plenty of signal even with the insertion loss of the tone stack.
@makkiesteban457411 ай бұрын
Can I do the same thing with a 68 Showman or is this specific to a DR?
@PsionicAudio
11 ай бұрын
Works with a Showman.
@makkiesteban4574
11 ай бұрын
@@PsionicAudio Thanks for the response. I really enjoy your no BS approach to videos.
@MrBritrider4 ай бұрын
Could I do this in a 68 Custom Deluxe Reverb?
@richardlynch5632 Жыл бұрын
Versatile...ain't it...?😁👍
@cyber-psych2503 Жыл бұрын
must be why they blow-up on stage
@MAMTROTH Жыл бұрын
Hey Lyle, I just tried this with my ‘66 Pro Reverb and it sounds like the amp is clipping with a really harsh and bright sound that is NOT present when I have v1 inserted and a 12at7 in v2, any idea why that would be? It’s not a pleasant clipping sound- it’s a ‘something is definitely not working properly’ clipping sound.
@MAMTROTH
Жыл бұрын
Update: seems like it’s actually only doing it when I pull V1. If I do 12ax7 pi but have a tube in v1 the amp sounds fine.
@PsionicAudio
Жыл бұрын
Could be you have a bad V2 that is working so long as that cathode is shared. In a healthy Fender circuit pulling V1 only makes V2 have a very minor gain increase.
@MAMTROTH
Жыл бұрын
Thanks for the reply Lyle, I appreciate your time. The 12ax7 in V1 and V2 are both new JJs. I tried swapping some different 12ax7s in V2 with no change. However if I Pull V2 instead of V1 and run into the normal channel the issue doesn’t happen. Is it possible the cathode itself needs replacing? Sounds like a fast crackling/ scratchy sound, and is louder than the amp sounds normally.
@PsionicAudio
Жыл бұрын
That’s unusual behavior, points to an issue with your V2B circuit. The grids of V1B and V2B both affect the bias as the circuit is intended. If V1 is absent and there’s a problem with the V2B grid leak (volume pot) the bias may be thrown off. Have a tech take a look.
@MAMTROTH
Жыл бұрын
@@PsionicAudiotaking the amp to a tech this weekend. Very frustrated with my Pro at the moment. Now I’m noticing ghost notes when I have the amp around 5 or higher ( or if I use an OD pedal with the volume lower), that seem to resonate a 4th below the note I’m playing. Makes the amp sound gritty and like it’s gurgling and messy. I had the amp totally gone through and recapped after I got it, and then had to take it back twice for other issues. Hopefully 3rd time is the charm and we can sort out whatever is still causing these issues. I feel like a pain having to call my tech about it so much, but the amp is not reliable for gigging with the issues that keep popping up. Any advice for amps that need repeat service like this? The amp in question was a totally stock ‘66 pro reverb that was sounding good, but hadn’t been serviced in decades- I just wanted it recapped, and serviced for reliability and replace any bad/ too out-of-spec components.
@russellhltn1396 Жыл бұрын
Either I need to get better headphones or I have tin ears. I'm not hearing that much difference. Any headphone suggestions?
@PsionicAudio
Жыл бұрын
You can’t really hear it with phone speakers. For headphones, I use Beyerdynamic DT770 Pro 80 ohms and Sony MDR-7506s. It’s very apparent on them and on Yamaha HS-7s. I made sure the back to back clips didn’t have the leveling everything else had, and turned them down a bit so YT wouldn’t compress them heavily. But it’s a tricky medium for minutia…
@russellhltn1396
Жыл бұрын
@@PsionicAudio I was listening on a pair of Sony headphones. Right now it's at my other computer, so I don't have a model number. Thanks for the info.
@megwatts1903 Жыл бұрын
Does it work on a Hot Rod Deluxe? I could get the schematic out and try and figure it out myself but, lazy, and you already have the answer.
@marcospintor1333
Жыл бұрын
Hot Rod deluxe has a gain channel. And if you want distortion from the clean channel, you could connect a volume pedal to the effects loop and drive the preamp. You can’t do that on a Deluxe reverb. Very different circuit
@megwatts1903
Жыл бұрын
@@marcospintor1333 Yeah, I'm not fond of the Gain channel on the HRD and I don't know anyone who is. I am aware of the volume pedal trick. Just always looking for other options, if they exist. Thanks for the response. Cheers.
@PsionicAudio
Жыл бұрын
No. I was very specific about which amps.
@megwatts1903
Жыл бұрын
@@PsionicAudio Yeah, that's what I figured. On the very outside chance that you just didn't mention it.....
@RideAcrossTheRiver4 ай бұрын
All I know is my 2021 Deluxe Reverb '68 reissue shakes the damned walls.
@kylebeffa Жыл бұрын
is it possible to do this in a 50s tweed?
@PsionicAudio
Жыл бұрын
No, very different circuits.
@kirkp_nextguitar4 ай бұрын
Those two gain stages come after the volume pot, so how is that a better way of increasing gain than simply turning up the volume pot? I suspect the answer is that you have introduced more distortion by “deoptimizing” the two stages from what would ordinarily be considered best for fidelity. If that’s the case I’d view the increased gain of those two stages as a byproduct, not the main objective. If the customer prefers that type of distortion to simply turning up the volume pot or adding a boost pedal, all is good. A comparison to those alternatives would be useful.
@brentstewart59 Жыл бұрын
I've heard that this was something SRV did to his Fender amps. It seems like every Fender amp needs all the help it can get in terms of the available gain on tap. Great video Lyle. Thanks for sharing
@BSPotter Жыл бұрын
does this amp not play well with the 2 channels bridged?
@PsionicAudio
Жыл бұрын
The channels are out of phase on Fender reverb models. Some interesting sounds are there, but not the gain monster option other amps have.
@BSPotter
Жыл бұрын
@@PsionicAudio I figured that was the case otherwise its such an easy option. I have the current 64 custom handwired DR and bridging the channels works great, but it has verb and trem on both channels.
@eastontanner6919 Жыл бұрын
I always wondered why old Fender amps have two inputs for each channel, so I was wondering what the difference is between them
@samsoliva
Жыл бұрын
Input 1 = designed for LOWER output signals (single coils and some P-90s). WARNING: pretty sure this contains 60 cycle hum. So even when you're not playing and you leave your volume on, say, 3-10 on your guitar, you will hear something coming from the amp. Input 2 = designed for HIGHER output signals (humbuckers). Using this input lowers the decibels by 2-5? Somewhere there, but decibel readings are NOT linear, they're logarithmic. Goes into distortion faster and sounds a bit darker. To me, "darker" means a little muffled. Same notes/chords being played but with some layers of bed sheets in front of the speaker. Someone please correct me if I'm wrong.
@Mark70609
Жыл бұрын
@@samsolivamore or less though the number 2 input halves the signal via two 68K resistors.
@sempercompellis Жыл бұрын
get an aby with phase reversal - fender amps do not sound better than when you have both channels going
@AR-do3gj Жыл бұрын
This work on vintage Princeton ?
@PsionicAudio
Жыл бұрын
No, sorry. Very different circuit.
@AR-do3gj
Жыл бұрын
@@PsionicAudio thanks reply and heads up!
@williewest5574 Жыл бұрын
Just my opinion, but single coils benefit immensely from a full tone OCD
@koenraadfoesters Жыл бұрын
Just sayin', but you should NEVER connect those silent plugs to the input of your amplifier. Those are designed to connect to a guitar output. They can damage the amplifier badly. If you google the neutrik silent plug webpage you can find info on it.
@PsionicAudio
Жыл бұрын
The jack on this DR is the same jack on my guitar. Not an issue.
@oldguy5381 Жыл бұрын
Tone 101, thanks
@hamburgerdan10111 ай бұрын
Just bought a 68 twin reverb realized today it has no gain. 😢
@windsweptguitars Жыл бұрын
Will this work on a non-Reverb 63 Blackface deluxe
@PsionicAudio
Жыл бұрын
Yes. I just didn’t want to go down the full list of the amps it doesn’t work with.
@user-mk7xo8zc1d Жыл бұрын
To 11 ?
@barkeater9606 Жыл бұрын
Just put a pedal in front of the amp. 😂
@PsionicAudio
Жыл бұрын
Pedals react differently than tubes do. This amp belongs to a badass guitarist who doesn’t like pedals. Your little laughing emoji is rude.
@barkeater9606
Жыл бұрын
@@PsionicAudio I was just having fun. Yes, not everyone likes pedals. Thank you for sharing your knowledge with us. I enjoy your channel. 👍
@smelltheglove2038
Жыл бұрын
@@PsionicAudiolighten up sally.
@j.vaughan7539
Жыл бұрын
@@PsionicAudiosomeone is in his period. Yikes! 🤣
@relevantinformation6655
Жыл бұрын
12Ax7. “The golden tube“
@JRFarmercom Жыл бұрын
The often neglected 2nd input... Andy Summers used it almost exclusively on his plexi
@Mark70609
Жыл бұрын
I don’t use them, and I don’t see the value in them. It basically halves the input signal. This isn’t great as it lowers the signal to noise ratio on the amp. Ideally you want to attenuate the signal after the first stage.
@Malegys Жыл бұрын
The best solution is just not to use a Fender for anything. Problem solved.
@drSwan775 ай бұрын
I’m a rocker so her music is not my cup of tea but Taylor Swift is a very impressive person.
@hansemannluchter643
15 күн бұрын
🤣🤣
@godzoo18Ай бұрын
The best trick to do with a Fender amp is to get rid of it as fast as possible and buy something else that is actually made correctly.
@dada1952 Жыл бұрын
I have a '72 DR and I can't figure out why anybody would want to mess with the original design. Buy a different amp!
@PsionicAudio
Жыл бұрын
Well, that’s kind of my point. We moved the amp’s behavior slightly without any permanent mods. It’s still a stock DR inside. It can go back to the stock tube setup quickly and easily.
Пікірлер: 182
Edit: this amp is a ‘72. You can’t hear the level increase with phone speakers but it’s very apparent with headphones or real speakers. It’s about a 3dB increase with the amp volume staying just over 3. A real playing test would involve turning the volume up and hearing different overtones etc but that was outside the scope of this video. The owner will probably do a final playing video and we can do that kind of fun stuff then.
@ChittysMusicGear
Жыл бұрын
I was about to comment they discontinued that logo on 73. Great vid thanks!
@ViceroyBandOfficial
Жыл бұрын
Yep. Fender removed the word "Amp" from the front panel after '71 or '72.
When the V6 phase inverter is changed from 12AT7 to a 12AX7, the amp reaches distortion in the phase inverter stage before it reaches distortion at power tubes, whereas stock it reaches distortion in the power output stage first. Distortion in the power output stage sounds smoother and more pleasing, less ear-fatiguing to most. Also, that tube-switch-around cuts the clean watts output some as well, which may be a good thing for some folks, as you can then reach output stage distortion (with preamp stage distortion) at somewhat lower loudness. Further, this phase inverter tube change AND pulling V1 can be done to all original black-face and all early silver-face amps.
It’s interesting that so many didn’t get the message of your video and are pushing the idea of using pedals or they’re more concerned about the exact year of the amp. Maybe I’m weird. I was appreciative of seeing the easy way’s of getting more gain. Thank you.
@prtjazz
Жыл бұрын
Me too. I play on a live radio show where there’s a lot of movement on stage and not room for big pedal boards. Been looking for a edge of breakup tone at lower volume so this helps a lot.
Another great and helpful video Lyle. Thanks!
Loving the new videos Lyle!
Excellent tips, man! Thank you!!👍👍
Great video. I've borrowed a number of Fender amps for gigs. But one of the best I played was Princeton that was owned by a venue I would play in the mid to late 80s. I would plug my Yamaha SG 200 into it and run a fuzz pedal through it like a Rat and a Boss Chorus. I got more than enough gain for a good classic rock tone. I've owned a lot of Marshalls but Fenders like this just sound like home to me. I prefer good pedal platform amps to high gain amps. You can't beat the warmth of a Fender. The last Fender I owned was a Bassbreaker which was good but too Marshally for me.
Cool! Such a neat trick!
Thank you for the insight Sir.
Oh This is an Excellent Upload Sir ☺☺😎👊💯 And Yess it is Very Surprising What Seems Like Small Audible Differences in Drive Will Be in a Mixdown.. Thank You for All Your Knowledge and The Amazing Uploads My Good Man ☺☺😎👊💯💯
Have any-one heard or used a little plug-in box called an "Ice cube" it used to plug in to the reverb send / return on the back and this added an extra gain controlled by the reverb knob but you lose the reverb but it was "Epic" !
I experimented with pulling tubes and dropping the preamp voltage and changing the bias of preamp and power amp etc. In the end I accepted that I liked the base tone of the AB763 as designed and anything I tried moved just far enough away from that so as to sound "different". I think the problem is that one-amp-guys want it all. We want amazing clean (so cool bias, tight speaker), the "advertised" Fender chime, we want amazing edge of breakup (hotter bias, celestion style speaker) and we want ballsy overdrive. Its a hell of a rabbit hole. In the old days I would do what the Old Timers did: turned the amp up to 7-8 and use a 8-9k (and microphonic PAF style pickup) Les Paul with 50's wiring (so pickup loading which preserves treble response when you turn down). This involved positioning the amp off-stage, turning it round and latterly using deflector screens to handle the volume peaks. Now I use a treble bleed equipped Fender or a 50's wired LP in to an always-on "transparent" overdrive like a JHS Morning Glory (lower gain V2) or the Bluesbreaker (reissues are great for Fenders) and a mix of lower MU in V2 and higher MU (V4) preamp tubes. The Phase Inverter tube in an AB763 is were most of your overdriven sounds are fundamentally shaped. So getting that one right is vital. I like a NOS Mullard in there. I find the small bottle 5881 style power tubes grind WAY more than the big bottle 6L6's in the bigger amps. The final ingredient being the speakers. I like a bit of speaker breakup and I find that modern high power speakers don't get in to their sweet spot at usable volumes so can sound dull or "flat" while simultaneously being hellishly loud. So I deliberately use 40w speakers in a Twin or 15w speakers in a Deluxe etc. The other option, especially if you record a lot or stream, is to get an UA Ox. Kid Anderson often uses one of those with a silverface twin and headphones (he uses an IR and no live speaker in the room). Covers everything he does. Sorry for the essay! 🤣 FWIW in my opinion the best and only thing anyone ever needs to make every kind of music is a Deluxe Reverb equipped with a JBL D120F. Just drop the money now and thank me later. 🤣🤣
@lescaster2179
Жыл бұрын
I cheated, did not pass Go, did not collect $200, and bought a Tone King Imperial MkII.
@pharmerdavid1432
25 күн бұрын
I've heard that combo a few times, and don't disagree!
great video Lyle. customers always ask me to mod their vintage amps and Im trying to tell them "dont do it" the amp is doing its job. get a boost pedal if you want more gain. please dont ask me to try and improve an already great design.
@TeleCaster66
Жыл бұрын
I have 2 different boost pedals (a Les Lius clone and the Supro Overdrive) sound natural enough that don't change the character of my Blackface Deluxe to make me even think of modifying the amp, I cherish that amp because it's sounds so good on its own.
What a fantastic video have a great weekend also stay safe
anyone old enough to remember when most amps had tubes will be aware that, within the lifespan of tubes, there was a ‘peak period’ of performance where they would absolutely sing in warm, rich tones; beautiful, clean sustain that you wished would never end (though, sadly, it did) I would change all my tubes if one went bad so they would all be the same age…my all time favorite tube amp I owned was an original Supro 40 watt…I had no idea what it was but my father, a guitar teacher, used to buy and sell all kinds of gear and picked it up for $50 (in the mid ‘70s) all I knew was that it sounded incredible when full up…I used it exclusively until it blew up onstage in the early ‘80s…let’s quote the bible according to Keith: “The right guitar through the right amp; throw your pedals away” amen (at 65, I now use a 5 watt Bugera)
Really nice. Thank you. Use a 335 and just removing the one tube and is a nice stumble change
I understand the owner doesnt want to use a pedal. But those that do. An EQ pedal is the best way i have had luck with clean boost. Nice job with your video.
I've been using this trick on a 63 concert I got recently. Works great on non reverb ab763s too.
@PsionicAudio
Жыл бұрын
Yeah, there are other amps it works on but I didn’t want to go through an entire list. Bassman no, Bandmaster yes, etc.
Love the riff Lyle...
Great video! I think that amp is late 1969 (they dropped aluminum trim away) to 1970....'71 if that faceplate is original. There reads "Deluxe Reverb -Amp" That "Amp" word dropped ~'71. Also Fender logo is what they used till early 70s.
@PsionicAudio
Жыл бұрын
But it has a glued in baffle. I didn’t look closely, just saw the baffle and a ‘66/‘76 date code on the reverb transformer. Doesn’t matter as to the point of the video.
Thank you. Great video for all us players. Especially if you're that person who wants to keep their amp stock and free from internal modifications.
Fine Video. Thanks!!
Super cool!!!!
Good sounding amp.
You make that guitar sound very nice.
Good tips!
$100 Bugera PS1 Power Soak on my ‘68 DRRi. I *_can_* turn the amp volume to 10. But pedal overdrive is much more pleasing than a cranked Deluxe to me. I’m now of the mind that the Wampler Pantheon is the perfect pedal for my amp.
Thanks!
Good stuff.
Very nice. Gives that little breakup at low volume! I have heard this before, been reading about it but am scared to try on my super twin reverb with 6x l6. Don't know which ones to pull or switch.
Have you thought of doing show/episode on the different PI stages used by the pre 80’s Fender amps? There was a noticeable change from the tweed PI stages to the Brown PI stage, to the Blackface PI and then the silver face PI.
Super cool
Damn you're good
hi, great video. my secret weapon for two channel blackface amps: a vintage mullard in v1 and a ge 12ax7wa at v2
I have to admit we pedal lovers have it way easier. We want more gain, or change of eq, compression, etc. We just slap a pedal in front and our problems are easily solved and away we go. Because in the end nobody else gives a poop. I have tried listening tests with a Line 6 in Vox settings and an actual Vox - and nobody could tell the difference. This stuff only matters to the actual player
A NOS 5751 in V1 will do wonders for all blackplate Fenders. My 66 Super sounds great.
Cool! Would a boost pedal have a similar effect? I assume the owner tried that already and didn’t like it.
Another mod would be to replace the JJ 6V6 with something with less headroom.
Nice video. I did your bias cool down mod for my blues jr it sounds as good or better than stock high bias. What bias range do you recommend for the 65 deluxe reissue? Thanks!
Great video! Recommended mods for sure. One question, If I remove 2 power tubes on a 4x6L6 amp and disconnect one speaker to match the impedance, do I need or is it recommended to readjust the bias?
@PsionicAudio
11 ай бұрын
Yeah, make sure the bias is still in a safe good range. Some companies switch without a change in bias but they build in a “safe window” (often with tonal compromises).
I had a device back in early 80’s called an ice cube small blue ice cube looking plastic device that plugged into the reverb tremolo foot pedal jacks it really upped the gain Not sure how it worked but it did
@billbornemann5417
Жыл бұрын
I have the same. Still in the reverb phono jacks of my silverface Twin. There’s some circuitry (buffer?) in it that allows a clean pretty powerful boost depending on your REV knob’s setting.
I've watched a few of your repair vids recently....I'm suprised all the common problems the Fender Hot Rod and 68 Custm Reverb have sheesh....is there a smarter built amp brand you prefer compareable to these level Fender amps and there price range? My Hotrod Deluxe 4 is in the shop....do you like the Peavey Delta Blues at all? Thanks
Great tip! Would this work on one of the new '68 Deluxe Reverb reissues?
Hi, that is an awesome tip. Great video, I'll give this ago later. Can I ask you a Q? Have you ever made a video on amp Vibrato issues you could link? I have a 65 Deluxe Reverb Reissue and if I engage the Vibrato circuit I hear an audible low freq ticking (without any guitar input). It's not very loud but it's annoying. It also remains when the guitar is being played. Thanks.
@PsionicAudio
Жыл бұрын
Thanks, and yes I’ve addressed that. Usually lead dress. It’s in some of the RI videos, check that playlist.
@Cod245
Жыл бұрын
@@PsionicAudio Thank you so much for responding. I’ll check them out 🙂
I set a TC Spark on top of my amp and use it to push the OD circuit. The Spark is a very transparent gain pedal. I don't love pedals. But using that 1 pedal, gives me a lot more gain AND I can turn it off in a second to get my sparkling clean tones back. AND I can do the same for my Princeton Reverb too. For pickers that are searching for their signature tone, this vid is definitely the way to go. For those of us that are trying to mimic tones from numerous different songs, probably not the best way to go. 🤔
I have always done the pull v1 truck for my deluxe reverb (66 and 67). And I’ll have to try the phase inverter trick too. Any tips like that for a blackface Princeton?
@psionicaudio this simple mod interests me, but I had a question. Would this be the same result as bridging the two channels together with a patch cable and/or using an ABY switch into both channels simultaneously. I believe it has the same gain increasing effect, but I was curious as to if the pathways dramatically differ. The fenders(and others) have some interesting plug and play mods on the fly for certain sounds for sure.
Love your videos- you’re such a pro. Question- How is this amp so quiet (noise floor)?? Maybe you have something filtering out the noise through your mic? I have a 76’ DR that’s been serviced and the noise floor certainly improved but it’s nowhere near this quiet running.
@PsionicAudio
Ай бұрын
Thanks. I put a small bit of room removal on my voiceover mic but never do any gating etc on the amp mics. Not even EQ or compression. You hear what the amps sound like. I do videos in 4K so YT uses less compression on the audio so you get a more realistic idea of what the amps sound like. Including noise floors.
@RussC123
Ай бұрын
@@PsionicAudio Gotcha- so maybe how my amp is running is normal then? Again it’s not terrible, just kinda hissy especially when the reverb is on and I get up to 4, 5 and onwards on volume
@PsionicAudio
Ай бұрын
Well, part of my gig is making them run as quietly as possible.
Another trick is pulling the V5 if you don´t use the tremolo anyway. This will give you also a little bit more tone. This three tricks pulling V1, changing the V6 with an AX7 and pulling V5, I have done to all my fender amps and enjoy their sound now even more :D
@PsionicAudio
Жыл бұрын
Pulling V5 won’t affect the audio path. But if it makes you happy…
@rolandoo002
Жыл бұрын
@@PsionicAudio Ok - you might be right. To my ears the amp "opens" up a bit more. But could also be the placebo effect ^^
Maybe , see if there are other brands with tricks. You can decipher schematics and would be great content. Marshel, Peavey,EVH, MESA, etc.... start a series of content. Thanks ( i have 67 Fender BF but man its OG and I hate to hurt a OG tube lol)
I'll try this with my FM9.
Cool trick! Only thing I wished was to hear when you then raise the amp volume how different it sounds?
Thanks Lyle! On this subject, could speaker choice play a role? If so what speakers might be a good fit for this clients desire for earlier breakup?
@PsionicAudio
Жыл бұрын
Speakers always play a role. This one has a very efficient ET65. But the owner plays this amp up way above 3, while I had it on the bench at ear level for filming purposes. At his actual stage volumes the ET65 is a great choice. There will be a real playing demo of this amp when the owner gets back from a European tour. It will get loud…
@xdoctorblindx
Жыл бұрын
This is a good point. If he wants earlier breakup at a certain volume, a less efficient speaker is a great solution.
I was always wondering when you do tubes swaps like these, is there a risk of blowing a resistor because the current draw increased? Or maybe that's only when you switch from a 12ax7 to a 12au7 if you want less gain (cough peavey cough)...
@PsionicAudio
Жыл бұрын
Current and voltage changes from minor preamp tube changes are negligible.
Great video, Lyle. What's your take on changing the 12AX7 phase inverter in a Tweed Bassman to a 12AT7?
@PsionicAudio
Жыл бұрын
It’s a move in the opposite, cleaner direction. Won’t hurt anything. If you like it, it works.
@Mark70609
Жыл бұрын
@@PsionicAudiolower gain, but higher current.
Hey, I was wondering; during Nirvana MTV Unplugged show Kurt used a Twin Reverb for his 1959 Martin D18e as a monitor, to have more gain on low volume apparently his guitar tech used a 12au7 in the PI / V6 and replaced the 7025’s with 12AX7’s. What are your thought on this? And how would you approach that show with a Twin Reverb as monitor?
what is your take on the Hicks Fender Mender? I have had pretty good luck with them.
I seem to recall another "mod" involving connecting the reverb out directly to the reverb in, and then using the "reverb" control on the front of the amp as another gain stage. Of course, you loose the reverb effect, but it is easily reversible (arguably easier than pull tubes). Thoughts?
@pharmerdavid1432
25 күн бұрын
WTF?!!
Ultraphonix or rockfonix they sound the business.
You mean I didn't need to splash out big bucks on that original Bad Monkey?
@MarshallCommaDave
Жыл бұрын
LOL seriously though i watch this and its informative and interesting but also, why doesn't the customer just USE A DRIVE PEDAL
Lyle, I thought Fender stopped using the underlined logo on their amps after 1972. I know that is true for Princetons (I have a 72). Did the different models stop using the underlined logos in different years?
@PsionicAudio
Жыл бұрын
I don’t know. I didn’t open this amp up again, just saw a ‘66 or ‘76 date code on the reverb transformer, saw the glued baffle and lack of black lines on the panel, so thought “‘76 or ‘77.”
What about plugging into both inputs? I do that on both mine to get a pretty big boost. But I don't own any Fender amps so I don't know if they work the same.
@121212Guitars
Жыл бұрын
Vintage Fender normal/vibrato channels are not in phase, so the sounds would be working against each other. Then again, if it sounds good, it is good.
Are you sure that the amp is a late 70's Deluxe Reverb? From the Fender logo with the tail on the grill and the fact it says "AMP" on the front panel, I would think it is an earlier model. Perhaps the transformer was changed at some point. My 77 Deluxe Reverb does not have the tail on the Fender logo , and also does not say AMP on the front panel. But you certainly have more experience than I do with these amps.
I do not know if you have ever addressed this, but what about pulling one power tube. A friend of mine did that 35 years a go to a Pro Reverb. Safe?
@PsionicAudio
Жыл бұрын
No, and it sounds awful. Push/pull output sections are better than just push or just pull.
@CianRourke
Жыл бұрын
@@PsionicAudio Thanks much for the insight.
I am confused how it is possible to have more gain (or volume) by removing a tube ? Wouldnt that reduce the gain ? (but at the same time also reduce headroom in the preamp , creating breakup at a lower bolume ? )
@PsionicAudio
8 ай бұрын
V1 and V2 share a cathode on their second triodes. So pulling V1 gives V2 a gain increase because its cathode R effectively halves.
Any mods like this for a fender super reverb RI?
What would be comparable "mods" on a Princeton? Can you pull the 12at7 in V2? or even a 6v6 power tube with no issues? If you pull a power tube I would think it would need to be re-biased.
@PsionicAudio
Жыл бұрын
There aren’t any comparable mods on a Princeton. And never pull odd numbers of output tubes in any Class A/B amp (and only pull even numbers after much research).
@GuyNarnarian
Жыл бұрын
@@PsionicAudio I wasn't planning on it - just curious. I know sometimes people will remove 2 of the power tubes in a Twin. Princetons get fairly gainy around 4-5 with humbuckers anyway.
Can you do this with a hot rod deluxe?
I've never had a 2 channel Fender amp but can you jump the channels with a patch cord like a Marshall
@robertbrown2728
Жыл бұрын
You can on my 68 custom DR but I don't think you can on the original ones. I think it's because the two channels are in phase on mine but not on the early ones.
@lucyfuir6386
Жыл бұрын
@@robertbrown2728 I was curious because the Marshall is a rip-off of a bassman. My 65 Princeton reverb is just one channel and all my Marshall's are newer. So I've never even done it. Just seen it done
Why is it the amps are always set with treble and midrange about 5-6 and bass about 4-5? Wouldn't there be more and better tone, if the treble and mids were up about 9 or so and the bass about 6-8, therefore providing more tone?
@PsionicAudio
Жыл бұрын
You’d have more signal but less control over the frequencies. Don’t sweat it - there’s an additional gain stage after the tone stack to maintain plenty of signal even with the insertion loss of the tone stack.
Can I do the same thing with a 68 Showman or is this specific to a DR?
@PsionicAudio
11 ай бұрын
Works with a Showman.
@makkiesteban4574
11 ай бұрын
@@PsionicAudio Thanks for the response. I really enjoy your no BS approach to videos.
Could I do this in a 68 Custom Deluxe Reverb?
Versatile...ain't it...?😁👍
must be why they blow-up on stage
Hey Lyle, I just tried this with my ‘66 Pro Reverb and it sounds like the amp is clipping with a really harsh and bright sound that is NOT present when I have v1 inserted and a 12at7 in v2, any idea why that would be? It’s not a pleasant clipping sound- it’s a ‘something is definitely not working properly’ clipping sound.
@MAMTROTH
Жыл бұрын
Update: seems like it’s actually only doing it when I pull V1. If I do 12ax7 pi but have a tube in v1 the amp sounds fine.
@PsionicAudio
Жыл бұрын
Could be you have a bad V2 that is working so long as that cathode is shared. In a healthy Fender circuit pulling V1 only makes V2 have a very minor gain increase.
@MAMTROTH
Жыл бұрын
Thanks for the reply Lyle, I appreciate your time. The 12ax7 in V1 and V2 are both new JJs. I tried swapping some different 12ax7s in V2 with no change. However if I Pull V2 instead of V1 and run into the normal channel the issue doesn’t happen. Is it possible the cathode itself needs replacing? Sounds like a fast crackling/ scratchy sound, and is louder than the amp sounds normally.
@PsionicAudio
Жыл бұрын
That’s unusual behavior, points to an issue with your V2B circuit. The grids of V1B and V2B both affect the bias as the circuit is intended. If V1 is absent and there’s a problem with the V2B grid leak (volume pot) the bias may be thrown off. Have a tech take a look.
@MAMTROTH
Жыл бұрын
@@PsionicAudiotaking the amp to a tech this weekend. Very frustrated with my Pro at the moment. Now I’m noticing ghost notes when I have the amp around 5 or higher ( or if I use an OD pedal with the volume lower), that seem to resonate a 4th below the note I’m playing. Makes the amp sound gritty and like it’s gurgling and messy. I had the amp totally gone through and recapped after I got it, and then had to take it back twice for other issues. Hopefully 3rd time is the charm and we can sort out whatever is still causing these issues. I feel like a pain having to call my tech about it so much, but the amp is not reliable for gigging with the issues that keep popping up. Any advice for amps that need repeat service like this? The amp in question was a totally stock ‘66 pro reverb that was sounding good, but hadn’t been serviced in decades- I just wanted it recapped, and serviced for reliability and replace any bad/ too out-of-spec components.
Either I need to get better headphones or I have tin ears. I'm not hearing that much difference. Any headphone suggestions?
@PsionicAudio
Жыл бұрын
You can’t really hear it with phone speakers. For headphones, I use Beyerdynamic DT770 Pro 80 ohms and Sony MDR-7506s. It’s very apparent on them and on Yamaha HS-7s. I made sure the back to back clips didn’t have the leveling everything else had, and turned them down a bit so YT wouldn’t compress them heavily. But it’s a tricky medium for minutia…
@russellhltn1396
Жыл бұрын
@@PsionicAudio I was listening on a pair of Sony headphones. Right now it's at my other computer, so I don't have a model number. Thanks for the info.
Does it work on a Hot Rod Deluxe? I could get the schematic out and try and figure it out myself but, lazy, and you already have the answer.
@marcospintor1333
Жыл бұрын
Hot Rod deluxe has a gain channel. And if you want distortion from the clean channel, you could connect a volume pedal to the effects loop and drive the preamp. You can’t do that on a Deluxe reverb. Very different circuit
@megwatts1903
Жыл бұрын
@@marcospintor1333 Yeah, I'm not fond of the Gain channel on the HRD and I don't know anyone who is. I am aware of the volume pedal trick. Just always looking for other options, if they exist. Thanks for the response. Cheers.
@PsionicAudio
Жыл бұрын
No. I was very specific about which amps.
@megwatts1903
Жыл бұрын
@@PsionicAudio Yeah, that's what I figured. On the very outside chance that you just didn't mention it.....
All I know is my 2021 Deluxe Reverb '68 reissue shakes the damned walls.
is it possible to do this in a 50s tweed?
@PsionicAudio
Жыл бұрын
No, very different circuits.
Those two gain stages come after the volume pot, so how is that a better way of increasing gain than simply turning up the volume pot? I suspect the answer is that you have introduced more distortion by “deoptimizing” the two stages from what would ordinarily be considered best for fidelity. If that’s the case I’d view the increased gain of those two stages as a byproduct, not the main objective. If the customer prefers that type of distortion to simply turning up the volume pot or adding a boost pedal, all is good. A comparison to those alternatives would be useful.
I've heard that this was something SRV did to his Fender amps. It seems like every Fender amp needs all the help it can get in terms of the available gain on tap. Great video Lyle. Thanks for sharing
does this amp not play well with the 2 channels bridged?
@PsionicAudio
Жыл бұрын
The channels are out of phase on Fender reverb models. Some interesting sounds are there, but not the gain monster option other amps have.
@BSPotter
Жыл бұрын
@@PsionicAudio I figured that was the case otherwise its such an easy option. I have the current 64 custom handwired DR and bridging the channels works great, but it has verb and trem on both channels.
I always wondered why old Fender amps have two inputs for each channel, so I was wondering what the difference is between them
@samsoliva
Жыл бұрын
Input 1 = designed for LOWER output signals (single coils and some P-90s). WARNING: pretty sure this contains 60 cycle hum. So even when you're not playing and you leave your volume on, say, 3-10 on your guitar, you will hear something coming from the amp. Input 2 = designed for HIGHER output signals (humbuckers). Using this input lowers the decibels by 2-5? Somewhere there, but decibel readings are NOT linear, they're logarithmic. Goes into distortion faster and sounds a bit darker. To me, "darker" means a little muffled. Same notes/chords being played but with some layers of bed sheets in front of the speaker. Someone please correct me if I'm wrong.
@Mark70609
Жыл бұрын
@@samsolivamore or less though the number 2 input halves the signal via two 68K resistors.
get an aby with phase reversal - fender amps do not sound better than when you have both channels going
This work on vintage Princeton ?
@PsionicAudio
Жыл бұрын
No, sorry. Very different circuit.
@AR-do3gj
Жыл бұрын
@@PsionicAudio thanks reply and heads up!
Just my opinion, but single coils benefit immensely from a full tone OCD
Just sayin', but you should NEVER connect those silent plugs to the input of your amplifier. Those are designed to connect to a guitar output. They can damage the amplifier badly. If you google the neutrik silent plug webpage you can find info on it.
@PsionicAudio
Жыл бұрын
The jack on this DR is the same jack on my guitar. Not an issue.
Tone 101, thanks
Just bought a 68 twin reverb realized today it has no gain. 😢
Will this work on a non-Reverb 63 Blackface deluxe
@PsionicAudio
Жыл бұрын
Yes. I just didn’t want to go down the full list of the amps it doesn’t work with.
To 11 ?
Just put a pedal in front of the amp. 😂
@PsionicAudio
Жыл бұрын
Pedals react differently than tubes do. This amp belongs to a badass guitarist who doesn’t like pedals. Your little laughing emoji is rude.
@barkeater9606
Жыл бұрын
@@PsionicAudio I was just having fun. Yes, not everyone likes pedals. Thank you for sharing your knowledge with us. I enjoy your channel. 👍
@smelltheglove2038
Жыл бұрын
@@PsionicAudiolighten up sally.
@j.vaughan7539
Жыл бұрын
@@PsionicAudiosomeone is in his period. Yikes! 🤣
@relevantinformation6655
Жыл бұрын
12Ax7. “The golden tube“
The often neglected 2nd input... Andy Summers used it almost exclusively on his plexi
@Mark70609
Жыл бұрын
I don’t use them, and I don’t see the value in them. It basically halves the input signal. This isn’t great as it lowers the signal to noise ratio on the amp. Ideally you want to attenuate the signal after the first stage.
The best solution is just not to use a Fender for anything. Problem solved.
I’m a rocker so her music is not my cup of tea but Taylor Swift is a very impressive person.
@hansemannluchter643
15 күн бұрын
🤣🤣
The best trick to do with a Fender amp is to get rid of it as fast as possible and buy something else that is actually made correctly.
I have a '72 DR and I can't figure out why anybody would want to mess with the original design. Buy a different amp!
@PsionicAudio
Жыл бұрын
Well, that’s kind of my point. We moved the amp’s behavior slightly without any permanent mods. It’s still a stock DR inside. It can go back to the stock tube setup quickly and easily.