Restoration of a Wurlitzer 1015 Jukebox Sound System

Музыка

In this offbeat video, we will completely restore the sound system of Wurlitzer's most popular jukebox: the 1946-1947 Model 1015. Starting with conversion of the tonearm to track properly with a modern diamond ceramic cartridge, we will then rebuild the amplifier and volume control box, modifying them to provide optimum tone and volume with the modern cartridge, concluding with proper biasing of the 6L6 output tubes. Throughout this process, circuit diagrams will be analyzed and each step will be explained. An audio demo of the final product will be provided using guitar input.
At the conclusion we will feature a video provided by a talented viewer, William Bock, demonstrating his hand-built Valco 6161 amplifier. He can be reached on Instagram at old_currents_am... and his KZread Channel link is youtube.com/@Warfratcoonhound... . Please address any inquiries to him personally. Thanks !!
If you enjoy videos like this one, please SUBSCRIBE to our channel and consider becoming a Patreon patron at / uncledougsvintageamps or making a PayPal donation to dldcam@aol.com. NOTE: We receive NO advertising revenue and rely strictly upon our viewers for support.
I have posted other videos featuring this particular jukebox: • How the Wurlitzer 1015... and • How the 1946-47 Wurlit...

Пікірлер: 668

  • @MotorRoseMusic
    @MotorRoseMusic10 ай бұрын

    UNCLE DOUG!!! YOU'RE BACK! I'll speak for everyone and say, we missed you!

  • @jeanlawson9133

    @jeanlawson9133

    10 ай бұрын

    Exactly....

  • @thomasburnett4712

    @thomasburnett4712

    10 ай бұрын

    Here, hear! (Sic) Welcome back Uncle Doug!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, MRM. We're already working on our next video.

  • @SharkoonBln

    @SharkoonBln

    10 ай бұрын

    You took the words right out of my mouth

  • @lynnagan7347

    @lynnagan7347

    10 ай бұрын

    Yes, Yes, Yes…

  • @rangercv4263
    @rangercv426310 ай бұрын

    Uncle Doug, your depth of knowledge always amazes me. I really don’t know of any other person on or off KZread who can modify a 1946 jukebox to work with modern records, build hot rods, and repair/modify vintage amps. You are truly outstanding, sir. Thanks for sharing your knowledge with us. It is very much appreciated.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're quite welcome, R. Thanks for the very nice comments :)

  • @bajaskier
    @bajaskier10 ай бұрын

    Welcome back!!! We all missed your warm personality and easy-to-follow teaching tecniques!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much for the nice welcome, Baja.

  • @UncleDoug
    @UncleDoug10 ай бұрын

    NOTE: Several viewers voiced concerns regarding the apparent absence of RIAA Equalization (a rather complex but interesting, topic.....look it up on YT if you're interested). It's been my experience that the significant increase in input impedance and use of a 1 meg VC pot results in good bass response......plus, don't forget the 18" speaker, which does some "equalization" on its own. In the rare case that less treble is desired, I have occasionally added a trim pot in the VC Box allowing varying amounts of high frequency to leak to ground through a low-value capacitor (value selected by trial and error). Regardless, the warm "jukebox tone" is quite evident.....and can be heard in one of my earlier videos featuring the W-1015: kzread.info/dash/bejne/mqiWsJlmptu7kso.html

  • @DaveCurran
    @DaveCurran10 ай бұрын

    Great stuff, a jukebox amp makes a nice change and an interesting comparison.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Dave. That's exactly what we were hoping for.

  • @strangersound
    @strangersound10 ай бұрын

    This was a treat. Any subject you cover is worth the time. Thanks for being one of the best teachers. ❤

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks for your very kind words, SS.

  • @josephsichting8162
    @josephsichting81629 ай бұрын

    A few things I love hearing 1) guitars with P90 pickups, 2) guitars through 15" speakers. Great job and thanks for sharing.

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Thanks, Joe. I guess we're two for two :)

  • @RJ-bn5uw
    @RJ-bn5uw10 ай бұрын

    Jack and Ollie were overheard at the catnip cantina wondering whose couch they need to stop scratching to get some face time in these videos . If they go union , you'd be the lesser of 60/40 for anymore of their help . Just say'n . :o) Thanks UD , for the sock hop memory .

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    They have been on tour for the past few months.....just returned in time to play on this video :)

  • @thomas.merchel
    @thomas.merchel10 ай бұрын

    As always, a pleasure to watch, so soothing and everyone is glad you are fine.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Thomas :)

  • @andrewwilliams5042
    @andrewwilliams504210 ай бұрын

    Functional art those old j-box's from that era, interesting subject. Still repairable after 75ish years.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Made to last, Andrew. Thanks !!

  • @TheGuitologist
    @TheGuitologist10 ай бұрын

    An Uncle Doug sighting! Good to see you, old friend.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Brad. At my age, it's good to be seen (upright) :)

  • @W1RMD
    @W1RMD10 ай бұрын

    Thanks for doing what you do on here. I always learn a lot from watching these videos. You have a real work of art in that 1947 Wurlitzer! I appreciate you showing it in your video. Take care!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, W1 :)

  • @mrgrinch14
    @mrgrinch1410 ай бұрын

    While I do have records and a record player, I didn't grow up with Jukeboxes. It's really cool to see not only something new on the channel but something completely new to me as well.

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Glad to hear it, Mr.G. We'll try some more new topics in the future.

  • @87mini
    @87mini9 ай бұрын

    I did an image search for the original pickup for that beast, and it is truly mammoth! When I had a job at an electronics wholesaler in the early 70's, we had an old juke box renter who would buy cases of Astatic #51-3 cartridges and needles to boot for all his conversions. I don't think he had anything this old, though! Lovely fidelity from that setup! I recently worked on the opposite end of the spectrum - a Duo-sonic record player about 1955 vintage - a monster Astatic Crystal cartridge with about 1.5 V of output (yes, volt!) feeding directly to the grid of the 25L6. It's the most simple piece of audio gear I've ever worked on! Didn't sound nearly as sweet as your Wurlitzer! Looking forward to the next one, Doug!

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Thanks for sharing this with us, 87. The original horseshoe-magnet cartridge for both pre and post-war Wurlitzer jukeboxes was indeed a formidable chunk of metal, completely filling the entire circular tone arm head and weighing several ounces.

  • @lanehaverly4332
    @lanehaverly433210 ай бұрын

    you are the gold standard of Tube Amps

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Wow!! Thanks, Lane :)

  • @avi8tor13
    @avi8tor1310 ай бұрын

    Love Ollie’s and Jack’s guitar playing! So good to see another fantastic and informative video, Uncle Doug! You’re the best!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, Avi :)

  • @monmixer
    @monmixer10 ай бұрын

    Those old jukeboxes sure did sound good. My parents had one of those console record players and it rocked. It's the tubes

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Yes, indeed. Thanks, MM :)

  • @slyfoxx2973
    @slyfoxx297310 ай бұрын

    When I saw Wurlitzer I was thinking organs. I forgot they did jukeboxes too. And it's red! I loved the jukebox in the arcade in the 70's. I'm sure you'll have it up and running and ready to rock.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    The sound system is going into a friend's jukebox, Sly, and he is doing the restoration. He does good work :)

  • @bellasvistas3463
    @bellasvistas346310 ай бұрын

    Wonderful!!! A real blast from past. There was a Jukebox like that in The Lions Den the Tuck Shop in my High School in the 60s. Thanks for the memories. Mike

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad you enjoyed it, Bella.

  • @PrinceWesterburg
    @PrinceWesterburg10 ай бұрын

    I cut my teeth on valve hifi then turned to the way more complex circuits in guitar amps. You made that transition much much easier. And you're right, a lot of guitar amp techs miss out by not making their own valve hifi, the quality is sublime compared to transistors and Class-A or Class-AB to boot!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks for sharing, Prince :)

  • @fenderpicker57
    @fenderpicker5710 ай бұрын

    Great video. Two of my favorite things I love about North Tonawanda, New York. Wurlitzer juke boxes and big block Chevrolet engines were manufactured there!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    A fine duo indeed :) Thanks for the info, FP.

  • @Tonetwisters
    @Tonetwisters4 ай бұрын

    How cool! We used to play a community center in Palatka, Florida back around 1964-65 ... One of the songs that you could still choose, was Buddy Holly's "Maybe Baby." That place was like the Happy Days TV show. When I grow up and get rich, I am going to have one of these Wurlitzers, a couple pin ball machines, and a Chris-Craft 1950's runabout like you would find at Kingsley Beach, Florida!

  • @UncleDoug

    @UncleDoug

    4 ай бұрын

    Let me know when you're ready to buy the jukebox, TT.

  • @Tonetwisters

    @Tonetwisters

    4 ай бұрын

    Hah-hah! And LOL's! Even if I had the dough, my wife would never let it in the house!! 😞@@UncleDoug

  • @UncleDoug

    @UncleDoug

    4 ай бұрын

    It's your choice, TT.....wife......or jukebox ;)@@Tonetwisters

  • @PandemoniumMeltDown
    @PandemoniumMeltDown10 ай бұрын

    I missed your jukebox videos. This video just ties many of your loves together and that is why I come here. You weren't even remotely testing my love of this stuff.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad to hear it, PMD. Thanks !!!

  • @Antony_Jenner
    @Antony_Jenner10 ай бұрын

    Thanks Doug, a very interesting video. Love your Jukebox it's a thing of beauty, that quick start relay would really sort the chaff from the hay on valves with weak heater filaments. Speaking of metal valves I have a 1946 RCA Bench amp that is all metal, it had a little 3" speaker for which I removed and put a milliamp meter in the hole it left and is now a guitar amp. It's a great amp and pushes my vintage Celestion quad box quite well. All the best mate!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, AJ. Glad you enjoyed it :)

  • @elluisito000
    @elluisito00010 ай бұрын

    Hi! This video reminds me of a visit I made to the Shure company near Chicago to attend a lecture on the history of record player cartridges. Fun memories 😊

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad it brought back fond memories, Luis :)

  • @morik3188
    @morik318810 ай бұрын

    So glad to see Uncle Doug has posted again. This makes my entire day!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    We're happy to hear it, M :)

  • @rexoliver7780
    @rexoliver778010 ай бұрын

    So many,many years ago worked on a Wurlitzer jukebox that used a similar electrodynamic speaker. It used a separate 5U4 tube supply to power the speaker magnet. Had an amp similar to the one shown in this film. A friend of ominous and I rebuilt the amp and supply for the box. It played 78. The speaker system had a tweeter as well. Sounded great when finished. Also redid the motor in its auto TT. Can’t remember the models-was over 40 yrs ago!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks for sharing, Rex.

  • @curtisphilumalee1447
    @curtisphilumalee144710 ай бұрын

    OK…… I cheated I went directly to the output test at the end of the upload. Pretty cool to see Jack’s red axe. Never figured he was a P90 pickup fan though. I had him pegged as a humbuckler dawg. Thanks for the upload. I’ll watch the whole vid once the wife goes to sleep. She doesn’t understand my addiction the amp repair porn.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, CP. Glad you enjoyed it. Your wife should be glad you prefer THIS type of porn ;)

  • @starcarrier1874
    @starcarrier187410 ай бұрын

    Gosh, I was worried about this guy. Thank goodness he’s back. I’ve got a basement full of vacuum tubes, chassis, transformers, and speakers I’ve been hoarding up from sales. I’ve got to start making stuff.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, SC.....now get down in that basement and get to work :)

  • @graftongodofmemes
    @graftongodofmemes10 ай бұрын

    Very happy to hear your informative voice, uncle.i hope you don't think we're sick of seeing you work on classic guitar amps. ..( hint hint) but we're certainly happy to see you work on just about anything, jukeboxes, rat rods, oil cans.... 😁😁😁

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad to hear it, G. Thanks !!!

  • @0richbike
    @0richbike10 ай бұрын

    Outstanding as always. As much as I enjoy you guitar amp restorations it's fascinating to see other period contraptions. Cheers rich

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Rich. Glad you enjoyed it.

  • @marky2A
    @marky2A10 ай бұрын

    You are speaking my language! My first guitar amplifier was a Wurlitzer similar to this, but older, since it had an old 5Z3 4 pin rectifier tube. I could have really used the pre amp you have. I was able to get a used pre amp to make the guitar operate. My gosh, you are the Best! I loved my old amplifier. I played bass by the way. Thanks Uncle Doug!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Greetings, Mark. Glad you enjoyed the video :)

  • @JFredick
    @JFredick10 ай бұрын

    Welcome back Uncle Doug! You should partner with a low run record producer to create your own 45 rpm test vinyl. You might be able to swing a cool contra deal just for the asking. This way you can have a great way of testing other jukeboxes and other vinyl spinners. I am really glad you are back Uncle Doug. Your videos are thoroughly informative, entertaining and insightful.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much for your very kind words, JF. Back in the 80's Rhino Records produced a bunch of popular 45 RPM hits on 78 RPM records, so they could be played in vintage jukeboxes. Those records are quite valuable now.

  • @matthewpage8108
    @matthewpage810810 ай бұрын

    It’s a fantastic diversion of your talent Uncle Doug. The original jukebox videos and the conversions are some of my favorites and they seemed to bring some “likes”. The guitar amp vids are top notch too, also some of my faves. Please take care Uncle Doug and stay awesome!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, Matt. Will do :)

  • @EzeeLinux
    @EzeeLinux10 ай бұрын

    THANK YOU! I have been hoping you'd get around to jukeboxes again. :)

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad we anticipated your wishes, EZ :)

  • @dhpbear2
    @dhpbear210 ай бұрын

    It's good to see you back, Uncle Doug!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, DH :)

  • @PennStacker
    @PennStacker4 ай бұрын

    I’m 50 years old. You are the best teacher I’ve ever had. I love your videos and I hope you are well. 🤟🏻

  • @UncleDoug

    @UncleDoug

    4 ай бұрын

    Thanks so much, PS. We really appreciate your comments.

  • @livewire4495
    @livewire449510 ай бұрын

    Great Stuff! I wish I could explain how you just sent me down Memory Lane. The Engineering of this unit is Totally Awesome.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, LW. So glad you enjoyed it :)

  • @paulmoreton3083
    @paulmoreton308310 ай бұрын

    Great to see you back up and running - hope that heat has subsided. Great video as ever, stay well! Paul in the UK.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Paul. It has.....somewhat.

  • @toby2581
    @toby258110 ай бұрын

    Thanks for the video, Uncle Doug. I'm too young to have ever once bought a record (even cassettes were going out of vogue while I was still a kid), but there's something about getting to see these discrete circuits that never gets old.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're quite welcome Toby :)

  • @alexdeleon7135
    @alexdeleon713510 ай бұрын

    This was a much needed episode, Uncle. I have been concerned about your status health-wise. I'm elated to see and hear you in great form. I look forward to the next episode, and hopefully many in succession. Please stay safe and vigilant.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much for your concern. We have another video almost finished and ready for release.

  • @mikemoyercell
    @mikemoyercell10 ай бұрын

    Not a turn off to me at all. That model, the 1015 is my fav jukebox. I love all tube amps. So happy you have a new video. Watching while I speak.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, Mike. I hope you enjoy it :)

  • @BurnleyNuts
    @BurnleyNuts10 ай бұрын

    I could listen to Olly and Jack all night Uncle Doug, Four months is far too long though for a prolific KZreadr such as yourself. Please produce more great stuff as soon as you can. Nuts.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, BN. Just because you were so nice, we will be posting a new video very soon :)

  • @BurnleyNuts

    @BurnleyNuts

    10 ай бұрын

    Perfect! @@UncleDoug

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, BN :)

  • @calescapee9642
    @calescapee964210 ай бұрын

    I used to restore jukeboxes in the 80s when I was in High School.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    They were quite popular back then......not as much now.

  • @kimmassey6596
    @kimmassey65969 ай бұрын

    Another cool Uncle Doug video. Great to see how they used to do that quick start filament circuit. Always learn something new from our favorite uncle.

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Glad you enjoyed it, Kim :)

  • @rickcostin
    @rickcostin10 ай бұрын

    Straight forward, informative teaching excellence as always and uninterrupted by adverts, makes it a real pleasure to take in your wealth of knowledge , thank you Doug.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much for your very nice comments, Rick :)

  • @chingletree5397
    @chingletree539710 ай бұрын

    Good to know some things are reliable and solid in a world of frightening changes. The weather may be going completely to hell, but at least ole Uncle Doug's still editing off the ends of senten-

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    It's our trademark, Ching. Any fool can post complete sentences ;)

  • @febobartoli
    @febobartoli10 ай бұрын

    Great video, and I feel like we just scratched the surface in your discussion of the circuit design and electrodynamic field coils. Refreshing and interesting, and I always feel that if I’m not careful, I just might learn something!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Febo. I have posted an earlier video about the different types of speaker used in guitar amps,.

  • @wollaminfaetter
    @wollaminfaetter9 ай бұрын

    I'm not much of an electronics guy, but I love good old technology - and I love to experience people who work lovingly and respectfully with it.

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Then you've come to the right place, W ;)

  • @tomstiel7576
    @tomstiel757610 ай бұрын

    Man Uncle Doug,,,so glad to see my favorite you tuber back in action,,,,sure did miss you,,,glad your doin well,,,hi to the kittys

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, Tom :)

  • @bctoner
    @bctoner10 ай бұрын

    Great to have you back

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, BC :)

  • @stuartgoldsmith2310
    @stuartgoldsmith231010 ай бұрын

    5000 tube amp repairs under my belt and I still learn several things each time I watch you. Stuart

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad to hear it, Stuart :)

  • @vintagetubeamplifiers
    @vintagetubeamplifiers10 ай бұрын

    It's always a GREAT day when I have a new Uncle Doug, my favorite Uncle, video!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, VTA :)

  • @stratcat4450
    @stratcat445010 ай бұрын

    Thank you for this great video Uncle Doug. You have been sorely missed. You are about the only channel that i have the notification bell on an its been tearing me up waiting to finally watch it! Life gets busy sometimes. Among other things i have been caring for a wonderful tiny feral yellow kitty who adopted us thes year an she finally got spayed an had a pretty hard time with it, but she an her big brother are living the good life now as dedicated indoor kittys only. That amp sounds great an your kittys are killing it with the tunes!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You are quite welcome, SC. Bless you for caring for lost kitties. All four of our indoor pals are rescued feral cats, and all four are wonderful members of our family, returning our love and kindness ten fold.

  • @stratcat4450

    @stratcat4450

    10 ай бұрын

    @@UncleDoug yes absolutely. Our kitties are beloved members of the family an give unconditional love back to us.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Indeed :)

  • @edwardhannigan6324
    @edwardhannigan632410 ай бұрын

    Hey Doug, and as everyone else here has commented, great to have you back with another 'jewel' of a video..! Great info and a fab topic.. Always learning and especially the nickel drop 9Volt heater thingy..So cool how that was thought out. Thanks for sharing, and I learn so much always..Stay safe..Ed..uk..😀

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Ed. It's always good to hear from you :)

  • @jlore6344
    @jlore634410 ай бұрын

    Uncle Doug is back!!!! This thing is so cool.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad you enjoyed it, JL.

  • @phillipyannone3195
    @phillipyannone319510 ай бұрын

    A little something different, I like it. Nice to see you back.😊

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Phil :)

  • @rjeppelheimer1541
    @rjeppelheimer15418 ай бұрын

    Found this a refreshing change.... jukebox amps are quite unique.

  • @UncleDoug

    @UncleDoug

    8 ай бұрын

    Glad you enjoyed it, RJ :)

  • @leearft8605
    @leearft860510 ай бұрын

    Good to see you back Uncle Doug, I was getting a little worried we wouldn't see you again. I'm a guitar player and love the guitar amp work but also love everything else you do tube amp or otherwise!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, L. You make us feel welcome :)

  • @smeh3929
    @smeh39299 ай бұрын

    Дуже дякую вам Дядьку Дак за цікаве відео! 🙂 Я памятаю про перші відео на вашому каналі про ігровий автомат, і ви показували і розповідали як він працює! Дуже цікаві відео! Є завжди чому повчитися! 👍🙂 Обожнюю ваш канал! З нетерпінням чекаю на нові розповоді! 👍🙂🎉

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Дякую за ваші дуже гарні коментарі. Я радий, що вам подобаються наші відео, і бажаю вам всього найкращого.

  • @alexkennedy7671
    @alexkennedy767110 ай бұрын

    It's great to have you back Uncle and once more another deeply fascinating restoration of a rare item. All the very best to you Sir and keep 'em comin'! Alex from Scotland 😁

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Greetings, Alex, and thanks for the nice comments :)

  • @AMStationEngineer
    @AMStationEngineer10 ай бұрын

    The area in which I reside is self-titled as The Antiques Capital of the USA, and for the last fifteen years, I appraised, evaluated the operation of, and performed repairs to and modifications required for the safe operation of Postwar thru Solid-State Era electronics, (mostly radios, and the occasional Leslie [which always had guitar amp mods performed, and usually owners who wanted those mods undone/returned to "Hammond B3 status"]) As the panic mode brought on by COVID began to tame, a nearby auction house had a dual-Leslie (series 47) paired speaker system, with the left channel speaker being driven by it's original Leslie amp and power supply, and the right channel driven by a (hybrid) Wurlitzer jukebox amp. Stranger, yet, was the fact that the rectifier was a JJ/Tesla 5U4, the front end "all Mullard", and the back end "all Western Electric". The tremolo drive was gear driven prior to a precision belt drive connecting the horn, with a fairly elaborate tach system breadboarded using SCR's and what I'm guessing was a Hall Effect sensor providing feedback to the tachometric/speed regulation stage. There were no schematics or documentation provided by the seller, and I wouldn't have even considered repairing or modifying any portion of that strangely wonderful beast. The "kicker" was the value of the Western Electric tubes, and the fact that JAN Spec "period wirewounds and precision resistors" were used in the biasing of the Western Electric tubes. The lead dressing was damn close to Mil Spec, and both power supplies were fan cooled with 1960's-era BK Dynascan fans. That was not the only time I've seen heavily modified Wurlitzer electronics come across the bench, which, because my primary business function was as a Motorola Two-Way Comms dealer, makes me suspect that there are many more of these Frankensteins out there.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Very interesting. Thanks for sharing AM.

  • @marcuscarrozza732
    @marcuscarrozza73210 ай бұрын

    Yeah, uncle Doug put out a video. Damn ,glad to see you again my friend. Wishing you many blessings

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, Marcus. I hope you enjoy it :)

  • @knifecollector54
    @knifecollector5410 ай бұрын

    Always really happy to see another uncle Doug video uploaded

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    That's good to hear, KC :)

  • @74cannelle
    @74cannelle10 ай бұрын

    Very interesting ! Unusual circuit, very different from usual guitar tube amps. As you said, some new tools in the toolbox 👍

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad you enjoyed it, 74C :)

  • @milofh550
    @milofh55010 ай бұрын

    Every day I hope for a new video from you Doug…Today was a good day

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    I'm glad to hear it, Milo :)

  • @glennk1931
    @glennk193110 ай бұрын

    These old jukeboxes in their day, especially in bars, ran all day, and in to closing time day after day. I think this is fascinating you working on this piece of history. Excellent video.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks. Glad you enjoyed it, Glenn :)

  • @williamexon171
    @williamexon17110 ай бұрын

    Just brilliant. So detailed and yet still comprehensible. You're an absolute legend.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Wow....Thanks so much, William :)

  • @SPIKESBIKES50
    @SPIKESBIKES5010 ай бұрын

    Beautiful light show at the end from the jukebox.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad you enjoyed it, Spike :)

  • @Tubeprof
    @Tubeprof9 ай бұрын

    Great job. This is still one of the best Tec Channels on KZread. There ist something to learn for everyone who wants to learn. Go on like this. And maybe - when the time is coming - we will get an other offbeat video with an old Hifi Tube Amp.

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Thanks, TP. We're going to incorporate some offbeat topics in the future.

  • @dennisogburn2072
    @dennisogburn207210 ай бұрын

    This is really cool. My dad spent a lot of time fixing up old jukeboxes in the 1970s - these were all in the shop of his dad, who used to run a business that included renting out and servicing jukeboxes all over the place. When my grandfather died, my dad fixed up and sold off the ones left over, and we kept a couple in our house. I just recently started building some of my own tube amps (with lots of help from your videos, Uncle Doug!) but unfortunately my dad is no longer around - otherwise, it would be fun to talk about this stuff with him. And I'm sure he'd like this video.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks for sharing, Dennis. It sounds like your dad left you with many happy memories.

  • @yisraels4555
    @yisraels455510 ай бұрын

    Of course we are interested in seeing old jukebox amps being repaired! I think one of the guitar amps you worked on a few years back had a similar phase inverter circuit. Thanks for another interesting look at electronics we might not get to see to often.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Y. Yes, interstage-transformer phase inversion is seen in a few guitar amps.

  • @shawnharkin822
    @shawnharkin82210 ай бұрын

    Wow, that was great Uncle Doug, thanks! I never fail to learn something from your videos ...very cool jukebox you have there :)

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Shawn :)

  • @KeritechElectronics
    @KeritechElectronics10 ай бұрын

    That was a nice recap. A fine amp too - and using interstage transformers as phase inverters was how they did it for decades. The heater relay is definitely an interesting feature; heat'em up while the customer is choosing a song! Doesn't seem good for the tubes though - I wonder if they had to be replaced more often due to elevated heater voltage, even if just for a part of a minute.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks for the nice comments, KE. To be honest, the 6L6's seem to have a very "normal" lifespan. I've been running several early Wurlitzer jukeboxes for over 30 years with almost zero tube replacement.

  • @rgbplumbinghilton
    @rgbplumbinghilton10 ай бұрын

    Great to have you back. Great vid of a nice amp!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, RG :)

  • @antoniodimeo
    @antoniodimeo10 ай бұрын

    Hello uncle Doug. I'm happy to see you again.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    The feeling is mutual, Antonio :)

  • @jamesbruno5896
    @jamesbruno589610 ай бұрын

    Thanks for the video UD! Always interesting & enjoyable! Take care.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, James. Will do :)

  • @SNORKYMEDIA
    @SNORKYMEDIA10 ай бұрын

    Welcome back Doug - hope everyone is doing ok at your end

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Never better, Snork :) Thanks !!

  • @krisharrop3764
    @krisharrop376410 ай бұрын

    Love you and everything you do! Great video.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks so much, Kris :)

  • @sipet214
    @sipet21410 ай бұрын

    Great to see that you Sir are back! God bless you!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks :) Likewise.

  • @Bob-Whiting
    @Bob-Whiting10 ай бұрын

    Loved this one Uncle D. Great job as/per the usual!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad to hear it, MM :)

  • @johannmuller5498
    @johannmuller549810 ай бұрын

    Excellent Video. Really enjoyed it.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    That's great to hear, Johann :)

  • @mobicus1
    @mobicus110 ай бұрын

    It's so nice to see a new Uncle Doug video extravaganza, and on such an interesting piece of gear, too! Thanks again, Uncle!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    It was our pleasure, M1.

  • @Darryl603
    @Darryl60310 ай бұрын

    Beautiful Jukebox!!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Darryl :)

  • @markcooper9063
    @markcooper906310 ай бұрын

    Great video glad your back

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Mark.

  • @GL64
    @GL6410 ай бұрын

    Very cool! Nice change of pace and good to get another vid from you.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad to hear it, GL :)

  • @drrobert2120
    @drrobert212010 ай бұрын

    Glad you're back!!! Excellent!!!👍👍👍👍

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Doc :)

  • @michaelspiering7585
    @michaelspiering758510 ай бұрын

    Awesome video, and thanks for the advice.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, Michael :)

  • @vainwretch
    @vainwretch9 ай бұрын

    Sounds really good !

  • @UncleDoug

    @UncleDoug

    9 ай бұрын

    Glad you liked it, VW :)

  • @Ron_Padgett
    @Ron_Padgett10 ай бұрын

    Loved it! I'm no technician, just a guitar player but I always love your videos!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    We're glad to hear it, K :)

  • @rickbaker4571
    @rickbaker457110 ай бұрын

    TKS UD!!! Great info and a great outcome.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, Rick :)

  • @fibberscloset498
    @fibberscloset49810 ай бұрын

    Thanks, Uncle Doug. Loved seeing this jukebox amp.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, Fibber. Regards to Molly ;)

  • @fullwaverecked
    @fullwaverecked10 ай бұрын

    I recently scored a Zenith Stereophonic '55ish speaker cab with an Alnico 12". Sounds super duper.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Sounds like a nice acquisition, FW.

  • @blkjckgtr3075
    @blkjckgtr307510 ай бұрын

    Very cool Doug,good to see you posting take care,Cheers!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Glad you enjoyed it, BJ.

  • @300poundbassman
    @300poundbassman10 ай бұрын

    Hey I know that first song♥️I was a Bassist for 45 years. Clean amp. Nice. Wurlitzers

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Shhhhhhh ! Don't tell the YT bot ;) Thanks !!

  • @michaelogden5958
    @michaelogden595810 ай бұрын

    Good to hear from you again, Uncle Doug!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Mike :)

  • @hv8546
    @hv854610 ай бұрын

    love it, thx uncle

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    You're welcome, HV :)

  • @samdefrancomusic
    @samdefrancomusic10 ай бұрын

    Excellent video UD! Welcome back, you have been missed!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks twice, Sam :)

  • @joegroome5561
    @joegroome556110 ай бұрын

    Great video. I really enjoyed you working on this amp. I'm glad to see you are still going strong, Uncle Doug.

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Joe. Never better ;)

  • @stirlingschmidt6325
    @stirlingschmidt632510 ай бұрын

    SO glad to have you back! I hope all is well, and thanks for the 'must-see TV'!

  • @UncleDoug

    @UncleDoug

    10 ай бұрын

    Thanks, Stirling :)

Келесі