Microphonics would probably be a bad tube.
Make sure not to run the tube at more than 250V for longer times, wears out tube quickly.
Jakob E.
Make sure not to run the tube at more than 250V for longer times, wears out tube quickly.
Jakob E.
- I just saw that i used ECC82 instead of ECC88 in this build by accident, ordered the wrong ones unfortunately (right ones on the way!
gyraf said:Gain should be more or less unity (1x) with unit bypassed. If it's not, there is a chance you've done something wrong on the filter board.
The filter board attenuates some 18dB when bypassed or set to neutral - and the amplifier stage just makes a steady 18dB gain (give or take tube parameter tolerances)
Jakob E.
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