Took my Cary 300sei out of the garage not heated where it has been unused for over a year, amp was pretty cold temps in the high 40s.
I should have let it get to room tempature but I didn't Amp turned on got a hum from the transformers I really never noticed before,Input tubes light up but My WE300bs never light up.
Ideas? I have another set of we300bs ,but I don't want to take a chance installing them. I don't have any cheaper tubes to try.