• 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.

Always on bias supply a problem?

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kodabmx

kodabmx

Member
Joined 2011
Due to convenience and laziness, I've added a bias transformer (instead of a boost converter) to provide negative bias. Anyone think it's a problem for it to be always on even while the tubes are cold?
If it is, I can add a relay.

EDIT: It's my GU29 amp. ~ -20V bias.
 
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