whoaru99
Epic Member
In my forthcoming build cathode bias is the plan. However, I'm wondering if it might be a good idea to make the cathode bias adjustable?
560 ohms is the planned cathode resistor, but what about changing that to, say, a 500 ohm resistor and 100 ohm pot in series? That would put the pot at roughly midpoint.
Thinking to wire the potentiometer wiper in shunt configuration rather than use it as a rheostat.
I plan to use matched pairs of KT88s, but wouldn't this scheme facilitate final dial-in on the amp?
Drawbacks (couple extra parts and labor notwithstanding)?
560 ohms is the planned cathode resistor, but what about changing that to, say, a 500 ohm resistor and 100 ohm pot in series? That would put the pot at roughly midpoint.
Thinking to wire the potentiometer wiper in shunt configuration rather than use it as a rheostat.
I plan to use matched pairs of KT88s, but wouldn't this scheme facilitate final dial-in on the amp?
Drawbacks (couple extra parts and labor notwithstanding)?