1951 Radio Receiver - Can We Bring It Back To Life? 

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This is a great day!!! A Carlson reserection AND a Shango reserection

Mr. Carlson's audio quality = gold standard for RU-vid

One of the best presentators on the topic, right here!

As a novice, most of your videos are over my head, but I was able to follow everything you did on this one. I even knew where you were going before you commented. So I enjoyed it more than any other one, either here or on patreon. Thanks for the great discussion.

While I love the long restoration videos, I am enjoying the shorter more frequent ones! Always great stuff!

I like this format of trouble shooting and diagnosis better. Isolating the exact problem before shotgunning the caps. Good vid. 👍

A little hum!!! It's amazing how many radios still work to some degree after so many years. Good to see you try them out before changing parts... with the appropriate safety devices of course.

This is an excellent video for introducing troubleshooting to novices! Perhaps you could use this chassis to make several more "one-topic" videos (i.e. safety caps, AF amps, etc.) to help first-timers learn a proper sequence for restorations. Thanks for all you do for the community.

Mr Carlson is the best when it comes to teaching vintage restoration, and I always recommend to people who want to learn. We've lived in a throwaway society for far too long and the people that understand are few and far between, so the more that learn the better. If a young person shows an interest I always try to encourage them. I'm in the UK so the only difference is the mains voltage. The technology and thinking is exactly the same so the teachings are perfectly valid.

im not a radio technician nor im a electronics engineer i just come here for ur neat and clean vedio. setup especially your audio quality..is soo pure and clean..

Love the Current limiting isolation transformer and variac supply. I never had one when I last plugged in a valve radio in the late seventies. Still got the burn scar on my wrist when I welded my metal watch strap to the chassis. Shocking what I got away with in those days.

Prof. Carlson, it's 331 am.. Southern California... Great to see a new one uploaded....

Some Clive style soldering right there! :) Looking forward to the three hour restoration video on this piece! A Mr Carlsson video can never be to long!

Another exquisite learning experience! Thank you so much Paul. Contacted you earlier about my Panasonic RF-8000 restoration. Almost complete, have learned a lot from your videos. Cheers, Geoff in White Rock.

I'm detecting the Shango066 influence. Down and dirty, let's get it working then we can restore it. This video actually dovetails nicely with the Trav-ler video he released earlier today.

Thanks for your video presentations. I "learned" how to fix radios when I was 15 Years old at my uncles Radio-TV Repair Shop. I was taught to repair by symptoms ,...ie: bad hum...replace fillter cap. Dead set,...check line cord and fuses, and tube filaments. You know what I'm talking about. After high school I went to RCA Institute of Technology and learned the theory. Other tech schools followed, like Bell and Howell which became DeVry , and finally I worked for Memorex and EMC in the world of disk drives and memory. Your videos are bringing me back many years as I am now 76 years young and still in love with electronics. Too many young people today reap my generations achievements and could care less about what brought them these marvelous devices they use daily. Well, I talk too much, but just wanted to say I'm glad I subscribed to you channel. BTW...your sites picture reminds me of something akin to a Space Lab. LOL. Well done!

The moment you powered it up I thought, "60hz AC hum! Check filter capacitor(s) on the power supply."

Mr Carlson's your 1951 Radio Receiver is cool I like it

Wow! That's a nice tiny oldie!

Thanks for these short more frequent videos. I love the videos you post and enjoy having more opportunities to see new content throughout the week. Can’t wait to see some ham gear.

Paul, Your videos have the most amazing audio quality.

Nice looking radio - even older than me ... find it interesting that a miniature tube made it in with all the octals ....that receiver must be super hot receiver with the rf Amp prior to the pentagrid converter.

I remember when I was very young my mom took me with her when she goes to the store and in one shop I heard something humming and music playing with the hum LOL 😆. All day long that old line operated radio played in that little store. I also remember watching an old black and white TV made in the 1950s in the barber shop that had vertical fold over at the bottom ahhh those were the days. I miss those bad capacitor days LOL 😆

Love your videos! You have a great way of explaining the diagnostics and principles behind them. You ARE the Professor!!!

Paul's knowledge is amazing. His experience is priceless.

you make it look so easy, been messing with an old german multiband radio off and on for the last 2 years guess its time to patreon up

When Mr. Carlson puts a title like "Can We Bring It Back To Life?", I wonder why didn't he write it as "Watch Me Easily Bring It Back To Life." Congrats on the content, I'm always delighted by your videos.

I always enjoy this type of video from Professor Carlson as he takes us along and see if whatever he has on the bench will work when first turned on.

Great video. You’re an excellent teacher! Short or long, your videos are the best.

I was not where of this filament flash . My collection of televisions and radios are in the 1930s age. One again you have come up with a ingenious solution

Very good demonstration . Thank you.

I learn something different every video you do, thank you!

Another awesome video Mr. Carlson ! I learn more and more watching these !

Its amazing that you know exactly where to look for the problem just by turning it on and moving the dials without even getting out any type of meter.

Hi Mr. Carlsen, if you haven't already do you think you could tell us a little about the equipment and software to do the audio part of your presentations? It's so crystal clear and well modulated I would love to know. Thanks again for your entertaining and highly educational broadcasts.

It's lovely when a repair almost feels like it repairs itself. In between a tough one, it can feel like an oasis haha. Wonderful job as always on the audio, the content, and the filming of what you do and your willingness to share it with us. It can be refreshing to see "big stuff" as you've got here and the freedom to place things in circuit that wide. Mostly all SMD repair and thru hole for me.

I wish to watch your video daily. It's more benefits for my work

As always - thanks for your vids, Paul!

Grett video. I'd like to see a restoration on this one. Because you don't get many All American 6's . Really appreciate your knoledge and explanation of these old circuits. Again, thanks.👍

Cool stuff. The great feeling that comes from fixing things. Keep the vids coming.

Hi Mr Carlson! Merry Christmas and Happy New Year to You and All of Your Loved Ones. Thank You for a Great Year of Information and Learning. Bless You and Everyone in range of your antenna.

Not bad at all for just replacing one two section Electrolytic cap on a radio that is a year younger than me. Thanks for the video Paul. Always great to see troubleshooting videos.

Mr. C you are amazing!

Amazing project video

Thank you for your time and knowledge. 21 in S.C.

hi mr carlson great vid,

Thanks for your help time

Excellent demonstration and explanations and above all interesting. I’ve a very basic understanding of electronics but this has rekindled my interest. Will watch more of your videos .Many thanks for this.

I love these restore videos.

Awesome channel!

Impressive... as always.

So glad I found this video. I recently found this exact same radio for $20 and it had all the tubes so I bought it. I haven't yet attempted a power up, as I hadn't even been able to find the model number.

I sooooooooo enjoy your videos, big fan, thank you !

Thank you!

8:35 - The quality of the solder joints can also be a clue to which components have been replaced.

Of course mr. Carlson.. u can mke anything work even if is not working, u can mke it wrk indeed.. u are the best I've ever seen so far.. perfect logic and comun sense.. thank you for your videos & knowledge God bless and stay safe..👈😎👍 Keep up the good destiny..

Looking forward to another reconditioning video for this radio. Thank you.

A lovely rig!

Excellent! Cool plastic for its age...

Amazing, not a single second to spear to watch..... Lots of regards.....

You knew it was going to be a " hummer" of a radio because the E caps (dual 50uF-50uF) are basically open circuited. Nice quick "resurrection" type video. Great candidate for a full restoration one day.

Good going resurrection, Shango style amost 🙂 The six tube setup with the RF pre-stage is a lot like they had in many tube car radios (rectifier there being a 0Z4), so once done up it will pull in plenty of distant stations.

When fully restored, this radio should be a great performer. It has (6) tubes and a three-gang tuning capacitor, which means it has true tuned RF amplifier stage to really bring in weak signals. One thing I could never figure out on this style of GE model, is why they put a tube shield around the output tube!?

Over seventy years old and still works beautifully...amazing engineering. It makes me sad to see today's devices that work for 1 year...maybe...then thrown away.

I appreciate the effort to put some suspense in the title, but you being you there's really not much. Thanks for the great videos!

Amazing person great performance

Excellent 👍

Always enjoyable

this is so exciting... it is some what like watching the glasslinger repair channel and he can make all kinds of vacuum tubes with kool machine shop stuff... thanks, great video...:)

I like the uncut bodge scene around 17:00 Thanks for including that

Hi Mr Carlson's Sir radio repair Is Very Nice👍👍.

Thank you for hard work on making these videos for us! I'd like, if I may, to make a little request as I'd love to keep my lab as tidy and organized as yours: Can you make a short video on how you organize your components in your drawers and shelves? Hope it sounds good to you! :)

Hi do like watching your restoration videos have you done work on vintage Radiograms with built in record player they were all the rage here in the UK back in the 1960s. Also would like to wish you a Merry Christmas and a Happy New year.

I'm a new subscriber....2 things.....I was a professional singer and vocal coach. Your voice and diction are as close to perfect for broadcasting as I've ever heard! Then my father was a WW2 radio technician. As a kid, I used to watch him working on radios and TV sets. I was fascinated but I had no clue what he was doing. Watching your videos reminds me of great times I had with him way back when and I'm finally getting an idea as to what he knew and what he was doing. Thank you!

Thank you

A friend of mine gave me this exact radio, I have it on the mantle downstairs! I haven't plugged it in, but now it's time to open it up and see what's inside. I will be following along and restoring mine as well. I just took it apart, and all the parts are original! The speaker model number is almost identical, but I think mine is a little bit newer, it doesn't have the dogbone resistors I see in Mr. Carlson's unit. Also, the dial light on mine is off to the left side as you face the chassis, Mr. Carlson's is in the center. Funny how the rear label says, "only use genuine GE tubes" when there is a mix of GE, RCA and Raytheon tubes inside. I'm quite sure they have never been changed, judging from the dust patterns.

You are great. Perfect áudio and image. Perfect explanation, cristal clear . Thumbs up and a subscription from Brasil. Keep the good work.

I took the plunge and became a patreon supporter.

Wow, I just finished working on a model 423, the same radio, different dial scale. A very good performer !

Your opening question reminded me of a class I had to attend for my company years ago. I was a bench tech for Polaroid Camera company and we were training on a new strobe flash unit. For the test to complete the class they had 10 flash units with defects they had placed defects into. And we were to only determine the defective component, not make the repair, using test equipment and the schematic. One unit I opened had an Allen Bradley resistor swapped into the Chinese circuit board. I saw that, closed it back up, passed it onto the next guy, and wrote down the defect. Immediately, the trainer got up and came over to me asking why I did not troubleshoot the device. I told him that the Chinese do not use Allen Bradley style resistors in these units. He gave me credit for it anyway.

Well, nice going Mr. Carlson! It seems I've watched so many of your videos now you've got ME pronouncing it "soul-der."

Can't wait to see this one finished

MR CARLSONS Your Radio Receiver is cool

With a total recap and a new on-off/volume control, it will be good as new. Brilliant.

Open filter capacitors are a pretty common problem with those old AA5 receivers. I notice that the receiver seems quite similar to the AA5's made here in the states; although, I've heard that in some areas of Canada the household current back in the early postwar era was 117 volts 25 cycles, which would require larger value filter capacitors.

Thumbs up Mister C

Good morning Mister a new lesson for me : the capacitor and the problem whith that ( ERS and value !!!) Thanks for your explication and respect for your khwolege !!! Sorry for my English langage but at 62 year old in France ...... Good for all and god bless you and your family .

Bravo !!!

Awesome

Always glad to see a video from you sir! Would be interesting to hear your opinion regarding an affordable VTVM or VOM. The meters you discussed in previous videos… (HP 419 and Knight) getting more & more expensive. I love my HP 419, But It’s a nice break on the weekends, working on my own test equipment instead of clients. Always picking up different pieces of test equipment and such for repair… If not to add to my own bench, then as gifts or possible trading with friends. Thanks for all your wonderful content.

Saludos Maestro: Un Fuerte Abrazo desde Cuba.

The chassis will restore very well and the cabinet will look superb after a good clean up. It looks in decent enough condition, just very dusty. It's a stylish radio and judging by the performance you got from it pre-restoration, it's looking promising that it'll work very well indeed.

Hi, Every time I look your youtube films, I enyoi it very much, whane I was young I also was busy with tubes, I still love it, but I do not have the oppotunity to be busy with this right now, I would like one day to contruct my own amlipifier , anyway thank you, I'm always interreseted, I',m Marc from Belgium

Intresting and good information! I have a suggestion for You. December 24, between 8 and 10 o’clock GMT, there is going to be an X-mas greeting from 1925. SAQ is transmitting on 17,2 kHz. Maybe an interesting video to do? Regards PeO

I miss the longer 1.5hr+ videos. I hope you have a couple of longer more in depth an detail videos in the works. I've been watching you for around 2 years now and I've always learned something from the procedure and troubleshooting process.

nice speaker for sure Like the older Zenith TV Speakers them sound Great as well.

I am just finishing up on a very similar chassis in a GE clock radio !

In quick restorations like this, the coupling capacitor between the AF tube and the power output tube is usually changed automatically as well. But I appreciate that you are planning a full restoration and don't intend to use the radio in the mean time.

Great, very good show to explain what was this humming