A Dream or a Nightmare? Sony CRF-320 32-Band radio receiver restoration Pt.1

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I have been trying to get my hands on a Sony CRF-320 radio receiver for ages, with no luck, mainly due to the very high prices that they go for. This radio is a work of art in terms of performance and mechanical design, so obviously it is a challenge that I itched for.
A friend of mine made my day when he said he'd got one that needed some serious attention, and wanted to know if I was up for the task.
Now restoring this radio is not for the absolute novice. However, there are some really good videos on RU-vid that show how others have tackled the project. Two notable videos served as a reference source for me, and I would like to thank their creators for their work, and link them here for your reference, and as recognition for their work:
Mr. Carlson's Lab: • SONY CRF-320 Receiver ...
The Radio Shop: • #108 Sony CRF 320 Repair
Join me on this project, and let's see if it lives up to its hype. I certainly hope so.
Enjoy the video.
Other channels mentioned in this video:
@MrCarlsonsLab
@TheRadioShop
#RadioRestoration #SonyCRF #VintageElectronics
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Опубликовано:

30 сен 2024

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Комментарии : 86

@TheRadioShop 9 месяцев назад

First let me say thank you for the honorable mention! Very much appreciate the kind words. Second, I will say do not sale yourself short. You have produced some really amazing videos on electronic repair and do a great job in the process. I enjoy every video you post. But let me say this, I almost did not post my video on the repair of the Sony due to Paul's video. Did not want folks to think I was trying to copy Mr. Calson. I surely do not compare my level of knowledge to his as I am just a dumb old country boy. Now you have jumped in on a radio that can be a bit intimidating. The way these things are built are a bit nightmare. However, as you see you have already sorted out a few hurdles. And I am very confident you will have this unit working like new. Thanks for taking us along for the ride.

@electronicsoldandnew 9 месяцев назад

The mention was my pleasure. I owe you and Paul a huge thank you for your imparted knowledge. Both videos gave me the courage to take on this project. I know what I knows, but more importantly, I also know what I don’t know 😊 This radio is a first for me, and without any prior experience with it, it did scare me a bit 😊 Fortunately I think it’ll be OK. As for “copying” another channel, I’ve found that this community is incredibly close and supportive. I believe in mentioning other channels as it just serves to make the community even more united.

@electronicsoldandnew 9 месяцев назад

Hi Buddy. If you’ve seen my latest video on the crf320, you’ll have seen that the SW is still acting up. I now have SW but it isn’t stable - it’ll work for a while on some MHz ranges, and not on others. Then it’ll jump again to become active on other ranges. I’ve also had a test signal going in at 3.6MHz but coming through at 4.6Mhz on the dial. Could really use some advise if you’ve got the time. Thanks.

@Forensic1Man 9 месяцев назад

Hi! Do you know (or does one of your faithful viewers know) where I can find the schematics to a Quadraflex 979 stereo receiver system? I have a bad channel on one side. Thanks for all your help and for these great videos! I really enjoy how you approach the trouble shooting and repair of different electronic units. Great job!! Thanks so much!

@electronicsoldandnew 9 месяцев назад

I’m afraid not.

@dl7majstefan753 9 месяцев назад

What a great project! Now you´re in the same league as Mr.C! Keep all my fingers crossed that you´ll be successfull!

@electronicsoldandnew 9 месяцев назад

Thanks 😊

@maartenschapendonk6345 9 месяцев назад

Looks like the person that was in it before turned it into a philips 😂

@electronicsoldandnew 9 месяцев назад

😂 true

@mackfisher4487 9 месяцев назад

Manuel, What an incredibly complicated thus scary looking radio, my first reaction is I'd rather have a crystal set. I have total confidence that you will succeed at restore this receiver for your British friend. Your time management skills must be incredible, family, work, restoration hobby, 3-D printing. P.S. has your wife at done any projects with the 3-D printer? any cat toys

@electronicsoldandnew 9 месяцев назад

The time management issue has been commented on (by my wife 😊) fortunately the 3D printing is something that goes on in the background, and I’ve come to accept the printer noise as normal 😊

@erikdenhouter 9 месяцев назад

What I read is that the gear plastic (I don't think it is nylon, nylon is really strong) it shrinks with age, and the steal axle won't give in to that so it breaks. A methode is to make a small ditch at the edge of the gear against the ridge, and use a good quality thin polyester sewing thread, and wind it 1or 2 or 3 times. Just before knotting it, apply (soak the thread in) epoxy.

@tarstarkusz 9 месяцев назад

You should glue one of the original gears back together and then mold it and pour copies using the mold and plastic resin. 3d printing such small parts risks having to do it all over again. You also don't have to do it 20 times to get one good one. So long as you can get one of the originals back to the right shape, every copy will be perfect. You can get some very strong resins.

@radio-ged4626 9 месяцев назад

Seems a real challenge but worth it. With your logical approach and people like Paul Carlson out there AND the radio repair community I'm sure the end result we all want to see will come. And even in the unlikely event it doesn't I'm sure we'll all learn plenty along the way. Looking forward to the next episode. 😊

@electronicsoldandnew 9 месяцев назад

Thanks 👍

@DylansPen 9 месяцев назад

I watched Mr Carlson's restoration about 3 years ago, it was one of the first electronics restorations I watched and you are right, that was a wizard working on something wizards made. You are also right that all of these restorations are welcome and highly informative, I'd love to have learned to repair electronics. Looking forward to the progress on this. Also with the advent of 3D printing it looks like many older parts may now be replaceable at home.

@electronicsoldandnew 9 месяцев назад

This printer had proven invaluable right from the first day. It’s amazing what you can do with it.

@frankjohnston4307 9 месяцев назад

I feel your pain. I bought a ICF6800, AM/FM were fine, but SW wasn’t working. Upon opening I found that parts were missing; I had to make a bracket for the SW band selector. Good luck. I’ve enjoyed your videos, and they have been a great help on my Grundig Satellits

@electronicsoldandnew 9 месяцев назад

Thanks

@JonRig 9 месяцев назад

Excellent!!! I was not at all expecting one of these to come up!!! A delight!! Very much looking forward to this series. For a while I had an eye out for one of these but they are really expensive (and often beaten up) so they kind of dropped off my radar. Even the ones that look like they have been fished out of a nearby swamp go for huge piles of cash so I concluded that getting one is unlikely. But, I will nevertheless enjoy watching how you get on with this!! 😊 The start of this was slightly reminiscent of the Braun T1000CD you did where some idiot had done some seriously bad meddling. This one seems fiddled with but not quite as bad at this stage. Vamos ver!! 😁

@electronicsoldandnew 9 месяцев назад

Yes, really expensive sets. I too thought back to the Braun as soon as I saw the insides 😊 I think someone tried his best here but then gave up and plugged things in any which way just to close it up. I’m now hopeful that this will really work out nicely. Just worried about the antenas. They are really rare.

@johnstone7697 9 месяцев назад

That's a very nice set. I actually have a CRF 330K, the one with the built in tape recorder, along with a 320 , and a 320 parts set. The 330 sits on my display shelf, working sort of ok, but waiting for my attention. Right now that's being occupied by a particularly stubborn Telefunken Opus 9 that refuses to behave itself. But one of these days I'll get to the Sony's. They came from a period when Sony was truly at the height of their radio game, and I was lucky to be an employee of the company at the time. I'll be watching your videos on this with great interest. Good luck..you'll need it! 😱 It truly is the beast with way too many transistors....93 to be exact.

@electronicsoldandnew 9 месяцев назад

Wow. I hadn’t even realised that they had so many transistors. A long way from the proudly advertised “6 transistor” sets that came out in the beginning of the transistor era.

@ricardoaliasdelatorre6836 9 месяцев назад

Hi Manuel, a big " Sony's" beast, mechanic & electronics complex worse if you are following hacker's steps, we'll be enjoying and learning a lot about these receivers😅😅

@electronicsoldandnew 9 месяцев назад

👍

@Donno308 9 месяцев назад

Nothing worse than when someone else has had a go at a radio and stuffed it up! I doubt that it worked after they finished with it. It looks as if they gave up and just roughly threw it back together. Probably a good thing that you didn't video much of it. It would have had me climbing the walls! Anyway I'm confident that you will have the short wave working with or without Mr. Carlson's help. Looking forward to the next part! Merry Christmas to you and yours.

@electronicsoldandnew 9 месяцев назад

I agree, someone gave up and just wrapped it up as quickly as possible. Merry Christmas to you and yours.

@BobAndersson 9 месяцев назад

Phew. When I saw some of the previous handiwork my mind went back to that Braun T1000CD you did. 😨

@electronicsoldandnew 9 месяцев назад

Same here 😊

@Valvulo 9 месяцев назад

Tenho a impressão de que, embora não condutiva, essa cola usada em alguns receptores Sony é corrosiva. Digo isso, porque o meu CRF5090 tinha incontáveis transistores e diodos com defeito (com fugas e mesmo com as lides "comidas"), em especial onde essa cola estava aplicada por cima e especialmente nas lides dos componentes. Por sinal, meu rádio está mais para um 5100 com uma banda a menos, uma vez que o circuito dele é muito mais próximo deste último do que do 5090 "original", usando inclusive o plugue de alimentação de quatro pinos (e não o de três, que chegamos até a conversar a respeito via e-mail)! Sobre o rádio deste vídeo, o CRF320, ele realmente é um sonho... Mas convenhamos: uma das piores coisas é trabalhar em um rádio "palitado", com defeitos introduzidos por algum curioso sem muita noção do que está fazendo. Já passei um bocado por isso também, felizmente em rádios muito mais simples! Um forte abraço daqui do Brasil. :D 73s de PY2ALV.

@electronicsoldandnew 9 месяцев назад

Pois, quando já lá esteve outro cozinheiro, a sopa pode sair mal 😊

@mcsniper77 9 месяцев назад

Videos like this are equal to historical research papers. The more the better. Everyone different, looked at from a different angle from a different author with different experience.

@electronicsoldandnew 9 месяцев назад

👍

@migsvensurfing6310 9 месяцев назад

Well it's a Sony.Why I stay away from them. 🙃😊

@ralphj4012 9 месяцев назад

Crumbs, certainly a teaser, look forward to part two. The first bit of tape looks to be to stop the speaker shorting on something. Please though, refrain from filming when you achieve manhood (well, not on this channel anyway).

@electronicsoldandnew 9 месяцев назад

I think you’re right. He must have had a short of sorts and decided to tape everything up. I agree with the manhood video inappropriateness for this channel 😊

@paulbennell3313 9 месяцев назад

Nothing worse than having to rectify someone else's "handiwork"...

@electronicsoldandnew 9 месяцев назад

Exactly. Twice as much work.

@MarcelHuguenin 9 месяцев назад

Very interesting and something completely different from the Graetz. I haven't seen the two mentioned videos and will follow along yours first.

@electronicsoldandnew 9 месяцев назад

👍 get really comfortable first. Both are over 2.5 hours long because they did it in a single video 😊

@eddys.3524 9 месяцев назад

"Cunning plans" remind me of Black Adder... I hope it will work out in this case

@electronicsoldandnew 9 месяцев назад

👍

@DavidTipton101 9 месяцев назад

What a beast! Good luck with this one Manuel 👍 I have printed gears for receivers as well. They ABS seems pretty tough so if there no restriction when turning I imagine they will last for a long time. The ones I made I printed a few extra and gave to the owners just in case. You were lucky to find an STL for yours on the web 😀

@electronicsoldandnew 9 месяцев назад

I agree that the ABS seems strong enough. I will definitely print a few spares to go with the radio. Finding the STL was easy. Being able to edit it (the hole was too tight) was the challenge 😊

@danielsaturnino5715 9 месяцев назад

Nice work. It sucks when people mess with stuff before you do. We want to mess it up ourselves.

@electronicsoldandnew 9 месяцев назад

😊

@josealeixes2861 8 месяцев назад

Eu vi os vídeos do senhor Carson e muitos outros vídeos o senhor Carson faz um bom trabalho neste rádio mais independente do senhor Carson e outros o Manoel é simplesmente o melhor não tenho dúvidas de sua capacidade quanto a este projeto sigamos em frente um feliz 2024 a todos tenho mais rádios pra mandar pra madeira parabéns Manoel…

@electronicsoldandnew 8 месяцев назад

Obrigado 😊 um bom ano para 2024

@Stan-mh7bf 9 месяцев назад

It's not a radio receiver - it's a TAPE recorder! (joke!)

@electronicsoldandnew 9 месяцев назад

Good thing it didn’t record all my swearing as I looked for the main issue 😊

@Romans15.32 8 месяцев назад

Very nice video. I am impressed. Thank you

@electronicsoldandnew 8 месяцев назад

Pleasure

@Radiocruncher 9 месяцев назад

That is going to be a real headache to sort. Great job so far considering someone has got at it. Nice job printing the gears. I've looked at Fusion 360 but the subscription is way too expensive. I'm looking forward to the rest of this series. All the best Graham

@electronicsoldandnew 9 месяцев назад

You can get a free fusion 360 license, Which is what I’ve got.

@Radiocruncher 9 месяцев назад

@@electronicsoldandnew Thanks Manuel. I had a 'man look' and just saw the free trial for 30 days. Just downloading the personal use version now

@electronicsoldandnew 9 месяцев назад

👍 It took me a while to start learning it, but once I did, I love it.

@lyntonprescott3412 9 месяцев назад

Great video! Time you did an FRG7 LOL

@electronicsoldandnew 9 месяцев назад

All things come to those who wait, as is proven by this particular project 😊 I’m sure an FRG-7 will come along as well.

@retro_tech 9 месяцев назад

Well, that indeed looks like an intimidating radio! But at least it seems like it's quite serviceable. I'm fully confident you'll get this one working perfectly again. Looking forward to the next video. Good luck!

@electronicsoldandnew 9 месяцев назад

Yes, all parts are actually quite easy to get to.

@paulperano9236 9 месяцев назад

How did you un-bung the big dial ?

@electronicsoldandnew 9 месяцев назад

In the confusion I forgot to mention that. It was actually stuck onto the front panel 😊

@gerardcarson2779 9 месяцев назад

An interesting radio, and project. Always enjoy watching your work and insights, and very much looking forward to watching this play out. Also Manual, would like to wish you and yours a very happy Christmas, and all best wishes for the New Year.

@electronicsoldandnew 9 месяцев назад

Thank you. May your Christmas and New Year be all you can wish for.

@mostlyoldthings 9 месяцев назад

Brilliant new project Manuel. Very pleased to see that your Fusion360/ 3D printer is proving to be an asset.

@electronicsoldandnew 9 месяцев назад

👍

@__Dude_ 9 месяцев назад

You obviously need to be challanged! With all your tube radio experience, resaurations of them become "jobs to be done", not too much to think about. But this one is asking you for a fight, right from the beginning. Well done , so far!

@electronicsoldandnew 9 месяцев назад

Thanks 👍

@nigelbrockwell6237 9 месяцев назад

This was a radio I always wanted. I came across it when I was invited to China Radio International back in 2013. An English guy working there said it hadn't been switched on for many years, but when I saw it you could say I fell in love with it. It has that professional look about it. I've seen several RU-vid guys repairing it and all I can say is, you'll have your brain tested to its limit. That said, I'll be watching you work through this one, for sure.

@electronicsoldandnew 9 месяцев назад

It is indeed a masterpiece. Hope I can do it justice.

@anandarochisha 9 месяцев назад

Beauty..good choice..

@electronicsoldandnew 9 месяцев назад

👍

@tubeDude48 9 месяцев назад

Turn off the Mute button.

@electronicsoldandnew 9 месяцев назад

👍

@daveys 9 месяцев назад

Top job as always Manuel. Great to see these old radios being brought back to life!

@electronicsoldandnew 9 месяцев назад

👍

@BJcanal270 9 месяцев назад

Thanks for sharing your knowledge and your adventures.

@electronicsoldandnew 9 месяцев назад

My pleasure

@michaelmiller641 9 месяцев назад

Fascinating!

@electronicsoldandnew 9 месяцев назад

👍

@fotoralf 9 месяцев назад

What an adventure. Can't wait to see the rest of it.

@electronicsoldandnew 9 месяцев назад

👍

@Stan-mh7bf 9 месяцев назад

Getting into Big League now I see! :)

@electronicsoldandnew 9 месяцев назад

The higher you climb … the further the fall 😊

@DerekHerbst747 9 месяцев назад

Manuel, you have firmly established yourself as a proverbial Daniel in the lion's den. And the lions are not happy. Excellent job as usual. I've been trying to improve my videography skills for my channel and get so frustrated with the camera getting in the way of the work. I don't know how you do it!

@electronicsoldandnew 9 месяцев назад

I’ve got a couple of those articulating arms that make the filming a lot easier.