Valve Crystal Oscillator Grid Current

[pwdrive]

I had considered that Al but as I understand it if the oscillator valve is operating in class C then the gain won't be all that high, the miller capacitance is proportional to gain, plus the valve in Johns schematic is a pentode which would make the miller effect less than what it would be in triode, having said all that I'm not an expert in this field, just trying to get a handle on it all.

Lawrence.