Alongside your expertise, I enjoy your comments. Even though the media in the US is like on steroids, we here in Europe don't have many AM stations. It depends from country, to country.
@@radioaktiv7841 In my surrounding Romania has all the bands. Hungary one station, we had one until 2005. Etc. Regarding the media In Europe it is forbidden to advertise pharmaceuticals. And generally commercials are much rarer. We also have private media but it is not at that insane level. And luckily here in Serbia, we have both CNN, VOA and Russian bias tv stations, so you can get informed from many points of view.
Depends what news you listen to. If you listen to regular news it's just what is going on. If you listen to things that call themselves news like Fox or OANN or Newsmax but are in fact propaganda then I agree, I cannot listen to it either.
We school ourselves to only listen to the news, here in the UK, once a day - any more is depressing. It's emotionally helpful to know that good, happy and healthy news has never sold and is rarely presented. What sells is - popularist shock, horror, bias, blatant omissions and more!
If you are wondering if the “clickbait” thumbnail worked….. well yes. Yes it did. I have a burning desire to learn more about RCA Crokadoilers and scofflaw transistor varnuplexars.
It's a really good idea.... Play music. Talk about retro subjects. Interject current politics and questions. Back to cool music. Tell people they are good and need to keep striving for themselves, their family and community, and for the glory of God. Reaffirm US founding principals. Hmmm... Maybe I've gone too far with the concept.
I've found that overflowing solder, then wicking the excess can do wonders on that corroded muck. The arrangement of the transistor as a detector, equates to a really fast diode with small PIV, but also small Vf. Thanks Bob Pease!
There's always something to learn from the dead, even if One must 'borrow' parts. We saw what Dr. Frankenstein needed, only Dr shango has postponed more digging and there's no funeral today. : }
10:50 I guess it's a good idea to have a small AM transmitter project as an addon for such radios. In europe AM is not popular, so it's either going for a FM radio or building/getting an AM transmitter. You can have quite a lot of fun building one from those cheap junk tubes (~0.5-1USD each or so), especially if you already have some coils available. Relay an internet station or your own playlist and it's good to go.
That is the worst looking corrosion covered IF transformer I have ever seen! An IF transformer substitute actually worked. Nice one Shango! Please don't leave batteries in your battery powered electronic if you store it do so without the batteries in it.
Good job getting it going. At first, with the high resistance measurements on the speaker, I thought the voice coil wires were corroded. You are correct in that there is absolutely nothing worth listening to on AM radio. Unfortunately, the same holds true with TV now.
Couldn't agree more about not being able to fine something worth listening to with these sets. We still have a few listenable FM stations around here, so I'm tempted to marry an FM receiver with a low power Part 15 AM transmitter to feed radios like this.
You need to get some fiberglass pens to help you to remove the alkaline encrusted traces... Very nice transformer substitute... Excellent work... 10/10
Very good radio! I've seen them use white FI instead of black and greatly improve sensitivity, but that was just an experiment. But I liked the result of this repair, it brought life back.
I Know it may sound crazy but I like to use Zep brand toilet bowl cleaner on pcbs that have seen battery corrosion. I use a little and brush it on with a toothbrush, it’ll eat it away and allow the solder to melt again(at least better than before treating). I haven’t tried other brands but I believe what’s doing the work is muriatic acid.
I suppose at some point you have to make a 'bang-for-buck' decision on how far you're prepared to go fixing these things. You gave the poor old thing a chance to sing, (or spout propaganda), once again and that in itself is something. Thanks Shango
The only use I had for my 32 Philco was listening to the Cardinals games when I lived in the St. Louis area. Now in the DFW Metroplex it's become a decorative item. Still can't bring myself to part with it. I spent the summer of '85 refurbishing it the first time and did a recap on it about five years ago. It just has too much sentimental value.
Keep it forever. When you're gone if you haven't found the right place for it yourself at least you enjoyed it. I'm not sure the future generations will care for these items. They may not be able for a multitude of reasons.
@@johnnytacokleinschmidt515 I still use it for the occasional late night DXing. It works quite well for that. Plus it's a model 71B so it's the first one to use the "new" high efficiency 6.5v tubes so there is a modicum of novelty to it. My daughter likes the way it looks so hopefully when I'm gone she'll at least keep it as decor.
It’s amazing that you got that corroded mess going ! Thanks for working on that first , always looking forward to the next radio restoration, and or TV ! You had me hooked with the Desert find Zenith 1000 ..
I was really glad when I saw you break out the wire brush-been there done that several times and while crude, in a case that bad you really have no other choice. Get's the job DONE!!!!
One of my favorite parts about this radio Is the Way American made radio circuit board tracks were designed ! It’s so beautiful! Also I have an RCA Victor radio from 1963 with no battery corrosion That would be a good parts radio for IF transformers for this radio! And it has the same speaker!
With everything we have now. I had huge enjoyment as a young boy with a small radio like this one. In Ireland at night we had Radio Luxembourg 208MW 1440 Khz for the pop music until 4am. 🙂🇮🇪☘️
@@LakeNipissing Hello Sir, only seeing your reply now. Yes LW 252 is now used for RTE1 radio for the Irish in the UK. It was to be shut down due to cost but the Irish government were put under to keep it open. RTE1 radio is the national broadcaster main station. Mostly News and Current Affairs. Music at night. 🙂🇮🇪☘️
Totally agreed that one of the hardest things about radios these days is finding a station worth listening to! I still love the concept of radio but it's kind of been ruined by the fact that all the stations in this country are now owned by the same handful of companies, and the foreign shortwave stations I used to get have either gone online-only or have quit altogether.
Have the same radio. even had to replace the trace from the + terminal. I made a 4V Battery from 3 AAAA batteries. I like the radio as its a great performer. RCA did a great job on this one. I live in Florida and have picked up a station in Chicago.. and WSM out of Nashville quite easily
Nice resurrection, good work. IMO, It's too roached out to mess with more, i wanted to see it work again, and this keeps it from the scrap heap. Maybe another will show up some day that was crushed, but has a workable board.
24:44 Aaron Copland: Billy the Kid; Gun Battle I have 2 of these radios. An AA battery will fit but the voltage is too low. The 18650 lithium-ion battery at 3.7 volts just might work but I have not tried that yet.
To clean circuit boards where batteries have leaked, I always use Methyl Alcohol and a soft toothbrush. It's safe on plastic cabinets and rinses away the corrosion.
If transformers can be rewound. Evaporust make good stuff for dissolving rust and corrosion, but it needs to be continuously streamed over the parts and kept warm.
I really enjoy the resurrection videos I've been trying to learn how to work on radios I just ordered a Motorola six transistor is mint condition looks to be 70s
Hmm not so sure about that. According to the schematic shango had on his phone at 22:33 there is a capacitor in that IF can too. And whatever ate away at the wires surely would have eaten away at that cap too. So you would have to at least get rid of it in favor of an external cap. And yes, the chinese schematic is incorrect as their IF can has an internal cap too. That is why shango need not add one externally.
I picked up a Sanyo AM/FM that had a horrid leak. The wires leading from the batteries were so rotten that they had to be replaced. I am still having problems with the unit working all the time I think I will have to go the same route you did and put in a different battery system as I can get it working with a power supply all the time but only occasionally will it come on with batteries.
I bought one of those capacitor wizard about a two years ago, I opened it up to put the batteries in it, I was appalled at the craftsmanship of the circuitry, it looked like it was built by a kid in grammar school, it also had a modification for surge protection that I had to install, I was not impressed with that piece of equipment...I resoldered the pcb and trimmed all the comments that were never cleaned up after being installed. Frankly for the 250 dollars I paid for it, I think I should've bought the blue capacitor esr meter. Norcal715 built his blue esr meter and it seems it's far better at half the cost .
The guilt is still there, I have multiple radios I'd like to see going again, some I've broken. typically they just have some unobtainable part, and I don't have your skills to substitute
You have guilt? No worries. Get to working on them. Find your nearest radio museum or HAM radio club and make some new friendswho will share their knowledge and experienceand maybe even some parts and get a few of your "guys" going again. Good Luck! Guilt? The things I destroyed or rejected that I would love to have today.... Can't change the past. But we can change our future by changing what we do today!
Keep practicing. Learn more. Practice makes perfect. One of the worst feelings is when you break something you knew you shouldn't have. One of the best feelings is you revisit it years later and fix it because you've learnt and progressed in your hobby. Happens to many of us that way.
If the voltage was to be 4 Volts, perhaps the original battery was a small 2 cell lead-acid battery. The color of the corrosion appears blue-green indicating the presence of copper sulfate. The lithium cell is a good option, as its voltage on full charge is about 4.2 Volts, with a rating of 3.7 Volts, still operating the radio. I wonder if an electrolytic capacitor replacement would put more life in its sensitivity....?
I had 2 radios just like that one that were 1963. The only thing different was the circuit board was flipped over. I don't watch the news any more as well.
i've done a similar IF bodge in a Hacker RP10 radio, the first IF transformer was physically damaged by a previous ham fisted owner/engineer😉, the original was a double section type, two cores, side by side, but nothing to lose i wired in a common far eastern single core type, orange coloured core, meant for first IF use, and amazingly after a bit of tweaking to match the IF frequency of the remaining others (465khz, i think it was), i'd say it worked as good ,or nearly as good as, new! and i didnt replace any caps 😉 they were ok. this was over 20 years ago, it still works but sounds distorted,(havent powered it up for nearly those years) so maybe now in need of cap testing again 😁 if so, i'll redo the bodge as it was done rather roughly at the time, i'll make a little pcb for it to adapt its pin layout instead of 1 inch long wires it has now
Perhaps light pressure sand blasting or perhaps better glass blasting the pcb backside will remove the top layer corrotion quickly, and then reflow it with new solder with a soldering iron? One can use copper wire too if the trace is not that long and solder it from a to b, if too long to be stiff enough then insulated wire works good. One could likely use thin copper wire and a drill a small hole on each side of it and fix it with thin bare copper wire to the pcb. Kind of brain surgery but it should work, old pcb's are not that complicated, i have soldered copper wires on much smaller electronics tracks than these. Try fixing a broken USB WiFi stick with a loupe and you get the idea here :) I like reading glasses +4.00 if i want my eyes to get real close to a small pcb to fix it :) My vision is -1.25 to -1.50, so perhaps +3.00 reading glasses will fit normal vision for this. I did buy several cheap minus glasses and +2.00 +3.00 +4.00 glasses to test things, it is kind of cool, like having microscope eyes holding eyes like 4 inch from the piece one works with to see real good :) I still have minus glasses to test, perhaps i see the stars in the sky again properly with the -6.00, who knows, i remember it was fun as a kid to watch the stars. Those glasses are still in the mail so yeah, dont know if that works or what use i got for those ones :) The lens in the eyes becomes less flexible so one can not focus as good at close-up or distance when getting older, it happens to everyone. So i find these glasses fun, kind of like being a kid again and i bet i did not come that close even as a kid :)
Alongside your expertise, I enjoy your comments. Even though the media in the US is like on steroids, we here in Europe don't have many AM stations. It depends from country, to country.
So I've heard.. FM seems to be more prevalent in Europe. And I agree, the media in the US is on steroids.
@@radioaktiv7841 In my surrounding Romania has all the bands. Hungary one station, we had one until 2005. Etc. Regarding the media In Europe it is forbidden to advertise pharmaceuticals. And generally commercials are much rarer. We also have private media but it is not at that insane level. And luckily here in Serbia, we have both CNN, VOA and Russian bias tv stations, so you can get informed from many points of view.
@@vextenoch I used to listen to radio Bucharest Arabic service in the 1990s which was transmitted to Middle East during Nicolae Ceaușescu era
@@radioaktiv7841 They are not on steroids, they are on stupid-roids. The current administration are hypocritical idiots!
Man, look at the quality of that variable tuning capacitator. Lol. Ball bearings! Real metal.
I can’t take the news anymore either. It’s like a bad nightmare that makes me nauseous.
Depends what news you listen to. If you listen to regular news it's just what is going on. If you listen to things that call themselves news like Fox or OANN or Newsmax but are in fact propaganda then I agree, I cannot listen to it either.
We school ourselves to only listen to the news, here in the UK, once a day - any more is depressing. It's emotionally helpful to know that good, happy and healthy news has never sold and is rarely presented. What sells is - popularist shock, horror, bias, blatant omissions and more!
Very well put! I was a news junkie growing up, but now you couldn’t pay me to listen to it.
@@herbertsusmann986 Says the man that gets his news from CNN...
@@seanobrien7169 Not only CNN. Amy Goodman, Ian Masters, ABC, CBS, BBC, etc...
If you are wondering if the “clickbait” thumbnail worked….. well yes. Yes it did. I have a burning desire to learn more about RCA Crokadoilers and scofflaw transistor varnuplexars.
I still find it difficult to differentiate between the RCA Crokadoiler and the Alliglaxor.
Shango needs his own radio station where he rants about everything
But then he would listen to that during repairs and rant ower rants and that could break universe or something...
Yeah maybe a sw one so he can be followed around the globe
@@WECB640 if im not wrong they offer a relay service to broadcast all over the world, but i think you still need a source studio
@@frank3770 It'd be great to have Shango on shortwave so he can tell everyone how dead shortwave is.
It's a really good idea.... Play music. Talk about retro subjects. Interject current politics and questions. Back to cool music. Tell people they are good and need to keep striving for themselves, their family and community, and for the glory of God. Reaffirm US founding principals. Hmmm... Maybe I've gone too far with the concept.
The transformer is ruined so the radio can't be repaired....then he repairs it! Not bad for a 59 year old radio.
I've found that overflowing solder, then wicking the excess can do wonders on that corroded muck.
The arrangement of the transistor as a detector, equates to a really fast diode with small PIV, but also small Vf. Thanks Bob Pease!
There's always something to learn from the dead, even if One must 'borrow' parts.
We saw what Dr. Frankenstein needed, only Dr shango has postponed more digging and there's no funeral today. : }
10:50 I guess it's a good idea to have a small AM transmitter project as an addon for such radios. In europe AM is not popular, so it's either going for a FM radio or building/getting an AM transmitter. You can have quite a lot of fun building one from those cheap junk tubes (~0.5-1USD each or so), especially if you already have some coils available. Relay an internet station or your own playlist and it's good to go.
KMIL Mrs. Miller, all the time!
For that corrosion, some things I've had success with is both vinegar and RA rosin flux, you heat it up and it bubbles it all away
I use lemon juice, that stuff that comes in the lemon shaped bottle.
@@NickG123 Vinegar or citric acid works really well. They’ll even take rust off steel if left on it long enough.
Apple cider vinegar really does do a job on that white stuff
Our local radio station AM is owned by the health department they spew it out all day long everyday, I can't believe people, never mind..
That is the worst looking corrosion covered IF transformer I have ever seen!
An IF transformer substitute actually worked. Nice one Shango!
Please don't leave batteries in your battery powered electronic if you store it do so without the batteries in it.
Good job getting it going. At first, with the high resistance measurements on the speaker, I thought the voice coil wires were corroded. You are correct in that there is absolutely nothing worth listening to on AM radio. Unfortunately, the same holds true with TV now.
I thought that one was lost! Great job!
Couldn't agree more about not being able to fine something worth listening to with these sets. We still have a few listenable FM stations around here, so I'm tempted to marry an FM receiver with a low power Part 15 AM transmitter to feed radios like this.
You need to get some fiberglass pens to help you to remove the alkaline encrusted traces... Very nice transformer substitute... Excellent work... 10/10
Very good radio!
I've seen them use white FI instead of black and greatly improve sensitivity, but that was just an experiment.
But I liked the result of this repair, it brought life back.
I Know it may sound crazy but I like to use Zep brand toilet bowl cleaner on pcbs that have seen battery corrosion.
I use a little and brush it on with a toothbrush, it’ll eat it away and allow the solder to melt again(at least better than before treating).
I haven’t tried other brands but I believe what’s doing the work is muriatic acid.
I love that green RCA one. Very looks like instrumentation looking.
Its incredibile how clean and selective this radio is , even with the if broken
Hey Shango; Great resurrection video! Relaxing to watch and think about after the shocking geopolitical news lately. Regards, R.
Nice job. Thank you.
shangoo066 never fails to get to the root of the problem
RCA had it together and held patents for many many radio circuits
Thank you mister
Successful operation, and, without "organ" rejection! Very informative, Thank You!
I suppose at some point you have to make a 'bang-for-buck' decision on how far you're prepared to go fixing these things. You gave the poor old thing a chance to sing, (or spout propaganda), once again and that in itself is something. Thanks Shango
The only use I had for my 32 Philco was listening to the Cardinals games when I lived in the St. Louis area. Now in the DFW Metroplex it's become a decorative item. Still can't bring myself to part with it. I spent the summer of '85 refurbishing it the first time and did a recap on it about five years ago. It just has too much sentimental value.
Keep it forever. When you're gone if you haven't found the right place for it yourself at least you enjoyed it. I'm not sure the future generations will care for these items. They may not be able for a multitude of reasons.
@@johnnytacokleinschmidt515 I still use it for the occasional late night DXing. It works quite well for that. Plus it's a model 71B so it's the first one to use the "new" high efficiency 6.5v tubes so there is a modicum of novelty to it. My daughter likes the way it looks so hopefully when I'm gone she'll at least keep it as decor.
It’s amazing that you got that corroded mess going ! Thanks for working on that first , always looking forward to the next radio restoration, and or TV ! You had me hooked with the Desert find Zenith 1000 ..
I have several of these RCA radios including a 1-RH-10 which I enjoy a lot. A 17500 lithium battery is a perfect fit and is widely available.
18650 too big?
I've never seen a metal can split like that before. Nice repair.
I love a good “make it work by force” video!!!
I was really glad when I saw you break out the wire brush-been there done that several times and while crude, in a case that bad you really have no other choice. Get's the job DONE!!!!
One of my favorite parts about this radio Is the Way American made radio circuit board tracks were designed ! It’s so beautiful! Also I have an RCA Victor radio from 1963 with no battery corrosion That would be a good parts radio for IF transformers for this radio! And it has the same speaker!
Love them pocket radios
With everything we have now. I had huge enjoyment as a young boy with a small radio like this one. In Ireland at night we had Radio Luxembourg 208MW 1440 Khz for the pop music until 4am. 🙂🇮🇪☘️
From Ireland on LW 252 kHz with 1.3 Megawatts, there was Top 40 "Atlantic 252" which I used to be able to receive in northeastern Canada.
@@LakeNipissing Hello Sir, only seeing your reply now. Yes LW 252 is now used for RTE1 radio for the Irish in the UK. It was to be shut down due to cost but the Irish government were put under to keep it open. RTE1 radio is the national broadcaster main station. Mostly News and Current Affairs. Music at night. 🙂🇮🇪☘️
Totally agreed that one of the hardest things about radios these days is finding a station worth listening to! I still love the concept of radio but it's kind of been ruined by the fact that all the stations in this country are now owned by the same handful of companies, and the foreign shortwave stations I used to get have either gone online-only or have quit altogether.
Hearing that Q siren in the background was music to my ears! (Im a retired volunteer firefighter)
You're a fricken magician. Damn you're good.
Have the same radio. even had to replace the trace from the + terminal. I made a 4V Battery from 3 AAAA batteries. I like the radio as its a great performer. RCA did a great job on this one. I live in Florida and have picked up a station in Chicago.. and WSM out of Nashville quite easily
I figured it would be
I share your revulsion to the local L.A. propaganda. Loved listening to AM radio for decades. All gone with the exception of some FM music stations.
Wow Doc! You brought patient RCA back to life. I wonder if it saw a doorway that led to other deceased radios before it was revived?
Here is the video ladies and gents!
Thanks shango066!
Another awesome video 📻👍🏻
excelent vídeo, love it, best regards from Brazil, Mário.
Hell yes that got it to work! If ever anyone could save a radio thats more or less eol your the guy
Hi Shango, greetings from Ireland, - Your languid presentation combined with real tech information is a joy to watch, - keep it up.
I say it came out pretty good considering the shape that it was in. The other RCA radio sounded really good.
Even if the alternate IF transformer is a "Duct Tape" fix.........it's working pretty darn well. Pretty darn good if I say so myself.
I was hoping you would not give up. I knew you were going to get it working. Good God man it is like you're saving the planet. LOL 73 Leo
These far away AM stations you pick up should issue you QSL cards! 😋 That was fun!
Nice resurrection, good work.
IMO, It's too roached out to mess with more, i wanted to see it work again, and this keeps it from the scrap heap. Maybe another will show up some day that was crushed, but has a workable board.
its probably ok as is for strong stations, maybe different IF transformer may give better results,
24:44 Aaron Copland: Billy the Kid; Gun Battle
I have 2 of these radios. An AA battery will fit but the voltage is too low. The 18650 lithium-ion battery at 3.7 volts just might work but I have not tried that yet.
The 18650 battery is 65mm in length while the AA is 50mm in length making the 18650 to long for this radio.
I watch your channel for many years send a radio gift
To clean circuit boards where batteries have leaked, I always use Methyl Alcohol and a soft toothbrush. It's safe on plastic cabinets and rinses away the corrosion.
I would See the radio where the clock is in. This is an intresting radio
shango: i cAn'T dO tHiS
also shango: does it anyway
If transformers can be rewound.
Evaporust make good stuff for dissolving rust and corrosion, but it needs to be continuously streamed over the parts and kept warm.
Love the nostalgia, hate the fidelity.
Respect !
Shango needs a screen booth!!😜
I really enjoy the resurrection videos I've been trying to learn how to work on radios I just ordered a Motorola six transistor is mint condition looks to be 70s
That IF transformer looked OK. The loose wires would be easy to rejoin to the pins.
Hmm not so sure about that. According to the schematic shango had on his phone at 22:33 there is a capacitor in that IF can too. And whatever ate away at the wires surely would have eaten away at that cap too. So you would have to at least get rid of it in favor of an external cap.
And yes, the chinese schematic is incorrect as their IF can has an internal cap too. That is why shango need not add one externally.
BAKED
Send Shango your address and maybe he can send it to you to repair.
@@KameraShy in Australia. USA Postage is a killer
Shango you should mail it to Russ
Deal breaker.....whoops..
Got it to work..... EXCELLENT!
Μπραβο πολυ καλος Νικος Σαμος Ελλας
Nice video 🇹🇩🇹🇩 i see all video sunday evening
Neat little radio!
I picked up a Sanyo AM/FM that had a horrid leak. The wires leading from the batteries were so rotten that they had to be replaced. I am still having problems with the unit working all the time I think I will have to go the same route you did and put in a different battery system as I can get it working with a power supply all the time but only occasionally will it come on with batteries.
Did the new if transformer have a cap inside it...?
Enjoyed the video shango066 !
Shango is the queen man, radio ga ga
I bought one of those capacitor wizard about a two years ago, I opened it up to put the batteries in it, I was appalled at the craftsmanship of the circuitry, it looked like it was built by a kid in grammar school, it also had a modification for surge protection that I had to install, I was not impressed with that piece of equipment...I resoldered the pcb and trimmed all the comments that were never cleaned up after being installed.
Frankly for the 250 dollars I paid for it, I think I should've bought the blue capacitor esr meter.
Norcal715 built his blue esr meter and it seems it's far better at half the cost .
SHANGO!! Oh yea baby. The Victor!!
Usually i soaked the pcb with flux and use the soldering iron to get rid off the oxidation
Wow, that tuner has ball bearings!
Great job in getting that corrosion off the transformer and circuit board,,,I had noticed the speaker,,,it has 3 wires,,,not 2?
🐨 I'm so happy you tried that Chinese IF transplant to give the old Girl/Lad life again..
APU I dropped yo a 👉👍👈
Good freakin job dude
Sounds better than the AM band in my car!
Modern car radios don't modulate AM well, its very mushy and digital sounding.
I have a 3RH22G ... distorted sound. but almost sounds OK if you turn it full blast.
Somebody called the bambulance for that poor radio.
Great work/gumption .. I’m sure you know you can find these IF xfmr sets on eBay, really cheap.
My grandfather told me baking soda water and a brush will clean up solid state electronics with any contaniments
The guilt is still there, I have multiple radios I'd like to see going again, some I've broken. typically they just have some unobtainable part, and I don't have your skills to substitute
You have guilt? No worries. Get to working on them. Find your nearest radio museum or HAM radio club and make some new friendswho will share their knowledge and experienceand maybe even some parts and get a few of your "guys" going again. Good Luck!
Guilt? The things I destroyed or rejected that I would love to have today.... Can't change the past. But we can change our future by changing what we do today!
Keep practicing. Learn more. Practice makes perfect. One of the worst feelings is when you break something you knew you shouldn't have. One of the best feelings is you revisit it years later and fix it because you've learnt and progressed in your hobby. Happens to many of us that way.
The BLAMbulance be rollin' hard.
Blamulances don't use far injun sirens. They are electronic ones.
There's a guy on ebay selling the same radio, powered by a 14500 3.7v rechargeable battery that looks like an exact fit.
If the voltage was to be 4 Volts, perhaps the original battery was a small 2 cell lead-acid battery. The color of the corrosion appears blue-green indicating the presence of copper sulfate. The lithium cell is a good option, as its voltage on full charge is about 4.2 Volts, with a rating of 3.7 Volts, still operating the radio. I wonder if an electrolytic capacitor replacement would put more life in its sensitivity....?
Organ rejection? You're funny as can be.
good morning.
I had 2 radios just like that one that were 1963. The only thing different was the circuit board was flipped over. I don't watch the news any more as well.
That one is very similar to their fancier model, the 1TP2E Pockette...
Do you ever get a severe headache or migraine from working on crt tvs? Got one real bad today
Old radios are cool.
I would have installed a LiPo cell and a small BMS board, then retrofitted a TS mic jack (the small one) to plug in a charger.
i've done a similar IF bodge in a Hacker RP10 radio, the first IF transformer was physically damaged by a previous ham fisted owner/engineer😉, the original was a double section type, two cores, side by side, but nothing to lose i wired in a common far eastern single core type, orange coloured core, meant for first IF use, and amazingly after a bit of tweaking to match the IF frequency of the remaining others (465khz, i think it was), i'd say it worked as good ,or nearly as good as, new! and i didnt replace any caps 😉 they were ok. this was over 20 years ago, it still works but sounds distorted,(havent powered it up for nearly those years) so maybe now in need of cap testing again 😁 if so, i'll redo the bodge as it was done rather roughly at the time, i'll make a little pcb for it to adapt its pin layout instead of 1 inch long wires it has now
4v is oddball, 3 mercury cells ?
There's a RCA 3 RH10 on eBay in Good condition for $45 right now.
mmm... mercury based 4v batteries... delicious.
you are the radio doctor,
Ground the speaker frame?
If you had my tremor, you might have a different hobby ;) I am finding it harder every year to assemble electronics.
Put electrical tape on the transformer, to insulate between the speaker.
Perhaps light pressure sand blasting or perhaps better glass blasting the pcb backside will remove the top layer corrotion quickly, and then reflow it with new solder with a soldering iron?
One can use copper wire too if the trace is not that long and solder it from a to b, if too long to be stiff enough then insulated wire works good.
One could likely use thin copper wire and a drill a small hole on each side of it and fix it with thin bare copper wire to the pcb. Kind of brain surgery but it should work, old pcb's are not that complicated, i have soldered copper wires on much smaller electronics tracks than these. Try fixing a broken USB WiFi stick with a loupe and you get the idea here :)
I like reading glasses +4.00 if i want my eyes to get real close to a small pcb to fix it :)
My vision is -1.25 to -1.50, so perhaps +3.00 reading glasses will fit normal vision for this.
I did buy several cheap minus glasses and +2.00 +3.00 +4.00 glasses to test things, it is kind of cool, like having microscope eyes holding eyes like 4 inch from the piece one works with to see real good :)
I still have minus glasses to test, perhaps i see the stars in the sky again properly with the -6.00, who knows, i remember it was fun as a kid to watch the stars. Those glasses are still in the mail so yeah, dont know if that works or what use i got for those ones :)
The lens in the eyes becomes less flexible so one can not focus as good at close-up or distance when getting older, it happens to everyone. So i find these glasses fun, kind of like being a kid again and i bet i did not come that close even as a kid :)
A small brass brush would be good to clean the corrosion.