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RCA A31 Radio Capacitor Voltages

Discussion in 'Do It Yourself (Not Computer-Related)' started by Evanco, Dec 4, 2018.

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  1. Evanco

    Evanco Thread Starter

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    Okay, so my mother has an RCA A31 tube radio. I learned that I have to get it recapped (some 39 capacitors!). I am completely new to this, so when I went to the store, they said that I need to know the voltages for each capacitor.

    My question is this: does anyone here know where such information may be found? I know it's a long shot, but you guys are so good at this and I have been helped before.
     
  2. 2twenty2

    2twenty2

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  3. lynx1021

    lynx1021

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    They recommend every capacitor in the antique radios be replaced because they break down with age and if they short the can take out a coil that can't be found but they still make replacement capacitors. I think most are rated at 600 volts and you are going to need a soldering gun (100/200 watt). The tubes don't go bad just sitting there. Electrolytic type cans might be harder to find. Usually they have 3 ranges with a common ground. I saw a schematic for an A30 but it didn't show the voltages. The highest plate voltage was 330volts, usually use 450 volt caps for that. I have some old books with schematics and tubes back to the 20's. I need to donate before I am gone (71) Ha Ha.
     
  4. lynx1021

    lynx1021

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  5. Evanco

    Evanco Thread Starter

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    In fact I knew about the schematic and downloaded it, but does it say where the voltages are? Thank you both for jumping in on this.
     
  6. lynx1021

    lynx1021

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  7. 2twenty2

    2twenty2

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    Did you get all the pages? There are about 9 pages. I would download them and take a look but I need to be a member to do so. I don't wish to do that as I have to give them my e-mail and because of this (We also share information about your use of our site with our social media, advertising and analytics partners.)
     
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