The VHT bias meter is a great tool to safely measure bias
Adjusting tube bias...
I am not new to tube amps, but I am new to tube amps without auto bias. My new (used) tube amp says to adjust the bias for the EL34 power tubes to between 0.3-0.35V. Is this based on the amplifier or the EL34 tube? I just got some winged C Svetlana tubes and wondering if the bias setting is the same when using these tubes?