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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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Thread Tools |
9th Apr 2021, 9:37 am | #1 |
Tetrode
Join Date: Jul 2016
Location: Renfrew, Renfrewshire, UK.
Posts: 93
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RCA pre amp
Hi All, Does anyone have any information (a circuit diagram) for a
RCA LM1-32215 3 valve mono pre amp. I've got one with stability problems, I know what you're saying its only a 3 valve thing 2 ecc81 1 ef86 but its mechanical make up makes it very difficult to follow. All help appreciated. Peter |
9th Apr 2021, 12:51 pm | #2 |
Dekatron
Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 4,311
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Re: RCA pre amp
There's a circuit towards the bottom of this page http://www.novacon.com.br/audiorcbri.htm.
Your web searching may not have found it because the model number actually starts LMI, not LM1. Cheers, GJ
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9th Apr 2021, 1:24 pm | #3 |
Tetrode
Join Date: Jul 2016
Location: Renfrew, Renfrewshire, UK.
Posts: 93
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Re: RCA pre amp
Thanks GJ, you'rE right, I've been searching for the wrong number. I've been working in the dark with this one for 3 days! Thanks very much, Peter
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