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preamp for pl504 amp
preamp for pl504 amp
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Old 12th May 2009, 12:00 PM   #1
flanagan is offline flanagan  Finland
diyAudio Member
Join Date: May 2009
Default preamp for pl504 amp

hello, i'm building stereo amp with PL504 tubes:

Click the image to open in full size.
Click the image to open in full size.

any ideas how to build one tube(two for stereo) preamp without additional transformer?
ecc81 cascode? does it work with 120V?


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