27th Nov 2020, 12:20 am
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#12
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Nonode
Join Date: Jun 2013
Location: Surbiton, SW London, UK.
Posts: 2,801
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Re: Circuit wanted for 1920s style Battery powered Amplifier
This set has a choice of using a single or two audio valves by switching and the info is
available "up top"
http://www.kbmuseum.org.uk/kb_images...set3a_late.htm
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