Skunkie! Thank you so much for the quick reply. No scope, but I can measure the voltages using a multimeter, yes? What I don't know is the proper setting on the MM before I stick probes in there. What sort of voltages would be reasonable to expect? And what pin would I be testing on the tube sockets?
My apologies, I know just enough about this to be confident to proceed once I have assurances I'm doing the right thing. 😆
Also, interesting you mentioned the KT88/EL34 switch, as I had just done that shortly after my original post. I was able to bias successfully. Thank you for the confirmation!
I'll try and not pester you again.
Respectfully,
A more than thankful pest, Darrell