• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

preamp for pl504 amp

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flanagan

Member
Joined 2009
hello, i'm building stereo amp with PL504 tubes:

Schaltung4.gif

nt1.gif


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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