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Audio and Video Talk
Valves / Vacuum Tubes
Ideas for MM valve phonostage
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<blockquote data-quote="fredeb" data-source="post: 953839" data-attributes="member: 13623"><p>Check here : <a href="http://www.sengpielaudio.com/calculator-gainloss.htm" target="_blank">http://www.sengpielaudio.com/calculator-gainloss.htm</a> - a little further down , table below "Amplification and Damping" .</p><p></p><p></p><p>It seem we have to have at least one high gain tube of the choice of 2 to have a decent amount of gain , perhaps then using something like ECC88 / 6N23P / 6N6P or ECC82 as the third valve or buffer .</p><p></p><p>My 6V choices might be 6N2P , 6N2P and 6N6P , resulting in a gain of 40dB if I consider 6N2P to have gain similar to 12AX7 .</p><p></p><p><a href="http://www.tubes.ru/techinfo/HiFiAudio/6n1p.html" target="_blank">http://www.tubes.ru/techinfo/HiFiAudio/6n1p.html</a> </p><p></p><p><a href="http://www.tubes.ru/techinfo/HiFiAudio/6n2p.html" target="_blank">http://www.tubes.ru/techinfo/HiFiAudio/6n2p.html</a></p><p></p><p><a href="http://www.tubes.ru/techinfo/HiFiAudio/6n6p.html" target="_blank">http://www.tubes.ru/techinfo/HiFiAudio/6n6p.html</a></p><p></p><p><a href="http://www.tubes.ru/techinfo/GlassTubes/6n23pev.html" target="_blank">http://www.tubes.ru/techinfo/GlassTubes/6n23pev.html</a></p></blockquote><p></p>
[QUOTE="fredeb, post: 953839, member: 13623"] Check here : [url=http://www.sengpielaudio.com/calculator-gainloss.htm]http://www.sengpielaudio.com/calculator-gainloss.htm[/url] - a little further down , table below "Amplification and Damping" . It seem we have to have at least one high gain tube of the choice of 2 to have a decent amount of gain , perhaps then using something like ECC88 / 6N23P / 6N6P or ECC82 as the third valve or buffer . My 6V choices might be 6N2P , 6N2P and 6N6P , resulting in a gain of 40dB if I consider 6N2P to have gain similar to 12AX7 . [url=http://www.tubes.ru/techinfo/HiFiAudio/6n1p.html]http://www.tubes.ru/techinfo/HiFiAudio/6n1p.html[/url] [url=http://www.tubes.ru/techinfo/HiFiAudio/6n2p.html]http://www.tubes.ru/techinfo/HiFiAudio/6n2p.html[/url] [url=http://www.tubes.ru/techinfo/HiFiAudio/6n6p.html]http://www.tubes.ru/techinfo/HiFiAudio/6n6p.html[/url] [url=http://www.tubes.ru/techinfo/GlassTubes/6n23pev.html]http://www.tubes.ru/techinfo/GlassTubes/6n23pev.html[/url] [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Ideas for MM valve phonostage
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