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£10,000 wooden-cased valve amplifiers
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4th Aug 2021, 11:19 pm
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Restoration73
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Join Date: Jun 2013
Location: Surbiton, SW London, UK.
Posts: 2,801
Re: £10,000 wooden-cased valve amplifiers
Some "valves" exceed 100 years life ;
https://en.wikipedia.org/wiki/Compressed_air_gramophone
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