Hello all,
I am attempting to build a simple tube amplifier with a 12ax7 tube which I believe has a maximum plate voltage of 300v, I am using a design from america that is working of a 120v rectified to dc which equates to 170v.
I am in Australia, we work at 240v, this rectified to DC = 340V too high for 12 ax7.
If I use a resistor in K ohm range to feed the plate this should work? What value would I use to get 170V?
Your input much appreciated.
I am attempting to build a simple tube amplifier with a 12ax7 tube which I believe has a maximum plate voltage of 300v, I am using a design from america that is working of a 120v rectified to dc which equates to 170v.
I am in Australia, we work at 240v, this rectified to DC = 340V too high for 12 ax7.
If I use a resistor in K ohm range to feed the plate this should work? What value would I use to get 170V?
Your input much appreciated.