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

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

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

thanks.

-markku
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