Hello,
So I had plugged in a 6h13c as the power tube and switched the amp on. After a few seconds, I could see a white spark inside the tube.. I immediately turned the amp off.
The headphones were not plugged in because I heard a loud pop at startup the last time I turned the amp on with the phones plugged in. Thankfully the headphones seem to be fine.
Any idea what's happening here? I'm assuming the tube is faulty. Should I check for circuit damage? Would you say it's safe to run the amp with another tube?
Thanks.