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Audio and Video Talk
Valves / Vacuum Tubes
Ideas for MM valve phonostage
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<blockquote data-quote="Qualityten" data-source="post: 970242" data-attributes="member: 17776"><p>Jan thanks for progress report and pictures. I had forgotten that you are using the Wizard?s power supply board, as I am. I like your chassis, with a screening barrier between the power supply and the main pcb l.</p><p></p><p>My build works well and has no hum at moderate listening levels, even with AC heaters and no elevation if heater voltage. My only complaint is that the gain is a bit low for use without a preamp (using three ECC88s). I need to test it with my valve preamp to see how it works there. Otherwise, it might be worth modifying it for higher gain valves.</p></blockquote><p></p>
[QUOTE="Qualityten, post: 970242, member: 17776"] Jan thanks for progress report and pictures. I had forgotten that you are using the Wizard?s power supply board, as I am. I like your chassis, with a screening barrier between the power supply and the main pcb l. My build works well and has no hum at moderate listening levels, even with AC heaters and no elevation if heater voltage. My only complaint is that the gain is a bit low for use without a preamp (using three ECC88s). I need to test it with my valve preamp to see how it works there. Otherwise, it might be worth modifying it for higher gain valves. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Ideas for MM valve phonostage
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