UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Starlight 1 · 19th Apr 2021, 7:05 pm

After the electrics were done I now realise I have mechanical problems.
The 2 white and 2 black drive wheels are much smaller than the originals.
I played a tape which sounds like Mickey Mouse and the nearest settings were
3 3/4. I recorded it onto the computer, made adjustments until the speech
became clear and it's running 0.562 out. My plan now is to take the 2 aluminium
take-up pulleys which the rubbers run on, measure all the sizes, lathe new pulleys and add the 0.562 which should bring everything back into spec.
Long way going about it but don't think these rubbers will be obtainable anymore. Just to add the man who did the electrics said the amplifier and the volume is outstanding quality and he was quite happy playing his radio through it.

19th Apr 2021, 7:05 pm	#64
Starlight 1 Triode Join Date: Apr 2021 Location: Norwich, Norfolk, UK. Posts: 42	Re: Reps JC20 Reel to Reel After the electrics were done I now realise I have mechanical problems. The 2 white and 2 black drive wheels are much smaller than the originals. I played a tape which sounds like Mickey Mouse and the nearest settings were 3 3/4. I recorded it onto the computer, made adjustments until the speech became clear and it's running 0.562 out. My plan now is to take the 2 aluminium take-up pulleys which the rubbers run on, measure all the sizes, lathe new pulleys and add the 0.562 which should bring everything back into spec. Long way going about it but don't think these rubbers will be obtainable anymore. Just to add the man who did the electrics said the amplifier and the volume is outstanding quality and he was quite happy playing his radio through it.