12-09-2016, 09:31 PM
That is a weird (to me) way to connect those filaments on that Fisher. It looks like they are using the filaments to bias the output tubes ... wow! I recapped a small signal tracer this week which uses a 12AX7, when I powered up to test, it flashed like you mentioned. It's a Mullard. Still don't think it is anything to be concerned about.
If I could find the place called "Somewhere", I could find "Anything"
Tim
Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44
