• 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.

Kt120 screen current

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jazbo8

jazbo8

Ex-Moderator
Joined 2011
AJT said:
TBH, i have yet to build a KT88 amp, but i will probably run the screens at 400 volts regulated instead of UL...agree that 500v is kinda high....

the KT120 is more like an EL509ish than a real KT88 from what i gather from the net, i could be wrong......so the things can be done differently...

there are teeve tubes with reinforced plates for more power handling, i've seen a 6LQ6 done like that...
Click to expand...

I think Mr. Turner said that he was saw no screen grid melt down even with 500V screen voltage for normal hi-fi use, whether one wants to operated it as such depends on one's wallet size. :D
 
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