Hey Tony🤩 I am so blown away by the high caliber and thoroughness of your work! Love your channel and your videos. The people that end up owning a unit that you’ve restored are lucky indeed! Thanks for the fun 👌

Enjoyed your video. I have a 2238b I purchased brand new in the 1970's. I have the original box, packing material and large plastic bag it originally came in. Mine works great no issues as a result and I have moved many times. Thanks for your great work here.

@baconstrips6260

Жыл бұрын

Got my box and pack in material for my 2238b as well!

Thanks for this video. I have a 2330B and although this isn't the same model, it gave me some great ideas. I replaced all of the blue buss lamps and the Stereo lamp. The Stereo lamp was kind of glued to the chassis so I had to pry it loose. Once I did that, I spliced the replacement LED into the circuit. To keep the LED in place, I used rubber bathtub calking. I got the lamp where it most evenly illuminated the front panel, then pressed bathtub caulking around it and let it set. Hopefully it will last a while. I've replaced the caps on the EQ/Volume board and am getting ready to tackle the power amp. Some of the boards are really tough to get to so I may just leave them and hope for the best. The receiver has always been stored indoors and other than household dust, was flawless. No bulging caps, no symptoms, (other than scratchy switches and pots, which I cleaned with De-Oxit), no burnt resistors. We'll see how it turns out.

Great stuff again Tony.....always enjoy your stereo receiver restorations/repairs, always gives me ideas of how to tackle my jobs, I do this part time, but its getting busy enough to do it full time!! Which is great, people love this old gear and are prepared to invest the money into getting them running reliably for many years to come....

Great video. One of the few manufacturers who still build their gear just as well today.

@thulinp

6 жыл бұрын

Actually Marantz dropped in quality a great deal during the 80s and 90s. Not sure how it is today.

Thanks for having the passion to bring these, True Old School Stereos, back to life ! The collection of vintage test equipment is very impressive. well done enjoyed each step !

Thanks Tony! Enjoyed you using vintage alignment equipment on this receiver.

I'm restoring a Marantz 2238B that was given to me about a year ago. Your video has been a godsend, especially your going to the trouble of finding replacements for the original transistors. It was given to me by a friend that had a TV-Radio shop that closed up several years ago when he went into radio station engineering. He was no help as to what was wrong with it too many years ago, it was abandoned by its owner at least 30 years ago who was unwilling to pay an estimate fee. . The fuse holder and fuse was missing (not a good sign). I found the driver pair shorted just like you did but the finals seem to be ok. both B+ and B- are on spec and clean. No other transistors seem to be shorted but I duplicated your Mouser order and am replacing all on both channels. But I'm not sure if I'm going to replace the finals. Finals!!....bet you couldn't tell I'm retired from many years of transmitter servicing... Oh, BTW I have a WR-50C I suppose it was the last of the line, solid state has two FET''s in it. Compared to the tube signal generators I own this little jewel is as stable as the Rock of Gibraltar. It's branded VIZ.

Enjoyed the video, you have a wealth of test equipment. I have a 2238b which works pretty well. It needs the tape monitor sw cleaned (loses signal) which I guess is pretty easy with some disassembly; did replace a control fuse on the board because none of the lights were working

I had one the same or very similar when I was 20 something. Got it used from my older brother along with a set of 901s. The Marantz is long gone but I still have the 901s stored and waiting for a total(amateur) DIY rebuild that might never happen,lol. I think they would still work as-is but I haven't powered them for ages. My old idea was to rebuild the 901s,leave the stands off for hanging, then get and rebuild a set of 501s to sit on the floor and "woof" along with them.

I have two 2220B's. One I inherited from my father who purchased it brand new in 75. They get pretty scratchy now days. Thanks for the how to.

Another nice educational video. Thanks John!

Thank you tony I’m happy to watch your videos

You put a lot of care into your work and I wish you lived near me so I could get some bits repaired, the problem where I live is the James brothers "Frank and Jesse" or maybe its some other cowboys.

You have done such great advertising with these videos that we all need you now lol.

Nice vid and peace and happiness to you too!

Hallelujah‼️‼️🙄 I honestly did not know there was another tuner/amp made other than a Pioneer. In fact, I better take pictures and document it because I am certain it must be a Pioneer and the excitement has me delusional. Oh well, I still hope beyond hope. I spoke to a guy years ago in another universe, who saw a Marantz being repaired; my hesitation at the time proved to be worthy of suspicion as it turned out to be a Pioneer in Marantz clothing. Dang‼️got my hopes up again. The search goes on..... I do see how easily the Pioneer is aligned. Thanks again for all the tips on the Pioneer equipment.

@fernarias

6 жыл бұрын

Pioneer won the receiver wars and it made the most units in the 70s which is why you see tony working on so many pioneers. Where I live it was really easy to find any Pioneer or Marantz The rest were hard to find and some almost impossible.

agree with you change all the transistors with the same type, it means the transistors to have the same MU

Great video tony

vintage marantz from the70s are the best in the world

I just picked up one of these yesterday and I'd like to get it refurbished hint hint

The glue getting corrosive is only one problem. It also becomes conductive as it degrades and shorts out circuits.

It's been over 20 years since I last serviced one of those. I suspect one or both of the F.E.T.'s in the F.M. front end is contributing to the lack of sensitivity and stereo indication when receiving over the air.

@xraytonyb

6 жыл бұрын

I was thinking the same thing while I was aligning the tuner. I checked the FET and even removed all three ceramic filters and swept them with the tracking generator on the spectrum analyzer. All was good. I think the big issue is that this tuner only has a single RF amplifier stage with a single 3SK45 FET and only two tuning gangs. They then run it through tow ceramic filters in series with no gain stage in between. Its a really tight tuner, but not super sensitive. The higher-end units have two and even 3 RF stages in the front end. Thanks for sharing!

Re watching this for about the 3rd time after a few years and come to think about it, i feel like my Dads girlfriends son or i accidently spilled some pop on top of this unit and never said anything about it to Dad. Not sure as it was back in the late 90's or very early 2000's when we were just kids. i do remember my Dad telling me that one day he turned it on and he saw a big spark ignite on the inside and he about shid himself. lol

I was waiting to see how you removed the stereo bulb. Mine is pretty stuck in there, (Dolby too), and I don't want to break anything.

Great video. Electronics done. I noticed you straightened out the LHS.bent panel corner ... did you use a piece of wood with a cut groove? A video on front fascia refurbishment to finish off these great receivers. Anyone doing this? After all physical condition is quite important to owners too. Thanks.

you are a libary of electronic knowledge and information a learning adventure especialy in amplifier fine tuning transistor semetry distortion channel matching amazing and so on..

How much does work similar to this cost for example

No counter option on that 2465 2467 Tek scope? I know my 2465 BDM counter is very accurate, of course I did the cal against my GPSDO. Still it holds well and will give me a freq readout on a pretty small signal.

Yeah email, Marantz 2325 here. Only owner, bought in early 70's.

Do you have a parts list for the caps, resistors, transistors, etc to replace in order to do a restore on the 2238b??

Hi, I have just restored a 2238B and I'm getting low voltage readings from the wire that comes from J432 in the P400 board to J726 on the P700 board. This connection (schematic specifies J432 to J725 though) is the one that lights up the dial pointer bulb when AM or FM is selected, but I'm only getting 3.22 VAC between the bulb connection pins (actually J726 and J712 instead of J725 and J711 as per schematic). The bulb is new and I've tested it soldering it directly to the other bulb wiring points. Ideas?

I know you provided your email for contact. But do you have a website with a price scale on the work you do and where your shop is located (city and state) ? I have a marantz that I gave to my parents years ago but I don't remember the exact model. 223x? I know it works still but it needs help. Not sure what kind. Channels are off ( sometimes one works or is scratchy when volume goes up or down). I can't find a local shop anymore. Fort Wayne, IN

Very nice and professional ! A question that I can hardly find an answer for. On the main filter caps (Elna), how do you find the polarity when no "black dot" is marked on. I got 2226B that I want to recap and can't find the answer around. I guess the 2238B got the same architecture.

Nice but why didn't you show how to remove each board, and exactly where you hooked up input/output for AM/FM alignment & why didn't you show the cans you adjusted instead of the meter?? Also, a very common repair in these are replacing the lamps but you only talked about it instead of video'ing??

Can someone recommend me the best seller to get the replacement kit with the great instructions?

Where do you get all that instruction or paper on testing the equipment? Do you sell it?

Excellent video. I have a 2238B that a Friend brought to me. His main reason for having me look at it is it smells Old and Musty. It stinks up my whole room. I did fine the 220 ufd Capacitor leaking all over the board but that doesn't seem to be the source of the smell. Every board and even the metal cover smells. I plugged it in and no right channel. I haven't poke around on it much but believe it's the protection relay. I wish there were instructions on how to remove the P700 board for re-capping. I could see in the video he had it propped up. I hate working on other People's stuff because if something goes wrong, the liability issues. My friend may not even want it back if it continues to smell so bad. I was going to put it in a bag and douse it with Ozone. But Ozone can be corrosive which may not be good for it. Anyone have one of these Receiver's smell bad?

@xraytonyb

Жыл бұрын

Sounds like a smoker's choice ;) Try some isopropyl alcohol and a soft brush and go over the whole thing. That might help a bit.

@scotta9114

Жыл бұрын

@@xraytonyb The Guy doesn't smoke. Not sure why it smells so much. Hard to even explain the smell All I can see is a 220 Cap leaking. I'll try the alcohol.

I would remove and store the face plate during restoration so it is not damaged.

@TheHoss4145

4 жыл бұрын

I think he knows what he is doing...

@jacobdowler1

2 жыл бұрын

@@TheHoss4145 GOBBLESS!!!

Hi Tony. Great repair job. Just one observation: At the end of the video, you refer to the signal being used to test sensitivity in millivolts. I'm sure you meant to say microvolts.

он че все электролиты поменял да еще и зеленую пленку местами поставил похоже. Или они там уже были.

@JohnnieFoxcsm

5 жыл бұрын

Антон

Great repair video! Crappy lighting 😞

And, whoops, suddenly the bent corner on the faceplate was straight again, done nicely (but unfortunately not shown how it was done; or did I miss it?) !! ... Surely there was more involved than powerful fingers... Nice videos, btw.

@xraytonyb

6 жыл бұрын

It involved pliers, cardboard (for padding) and other various medieval tools of torture. All kidding aside, I just used a pair of flat-nosed pliers and carefully bent it back. I also use a soft mallet and place the plate on a hard flat surface. Just depends on where the bend is and how bad it is.

@ulrichfrank4270

6 жыл бұрын

Thank you very much for replying how you did this. This must have required some art and care, to prevent making things look even worse and the contrast to the nicely (re-)illuminated face all the more starkly visible.

Where can I buy one of these receivers

@xraytonyb

4 жыл бұрын

I got mine on eBay.

I've got a 2235B. How can I get rid of that vintage smell ?

@LastGenGaming675

4 жыл бұрын

Weed

What is your email Tony? Also what part of the country are you in? Thank You Fred

At 50:50 "this adjustment is very touchy, so I did it OFF CAMERA" 😳😳😳😳😳😳😳😳😳

Need some help? LOL, I'm now retired and bored and have a lot of experience with this stuff. Marantz was awful though - it was loud because it has no dynamic range. Otherwise it was a fine amp.

Of course I watched the whole video to see how you delicately changed out the stereo lamp without damage and you did change lamp but didnt show how, grrrrrr. But overall great vid...

@floydloonie4880

5 жыл бұрын

@ Mr. Smith- Look through his video list for several other Marantz builds & I'll bet there is an answer somewhere in those past similar Marantz builds that will help you. Just a suggestion.... I haven't viewed them, but he tends to not cover parts covered in previous builds.

First!

talk too much!

@xraytonyb

2 жыл бұрын

Listen too little

Can i get that full schematic for the 2238b ? Google doesnt turn up a good result anymore.😢