- Jan 18, 2021
- Reaction score
- Staffordshire UK
It would be interesting to know your cathode voltage, at idle and when cranking out fully overdriven.Raised 150R cathode bias resistor to 180R
As mentioned, a large increase has consequences on tone (and power output). I characterise the tone as becoming more ‘reedy’, dunno if that might align with what you’re hearing.
Electrically, at power outputs below overdrive, the amp alters a high power sine wave to make it somewhat more triangular.