New member here! I finished my Bottlehead crack build yesterday, and did the resistance check, and every value was spot on. It's been a slow, careful build, and I was starting to feel confident I would get it right. Then today I began to do the voltage check. I powered up the amp, the tubes started glowing, and the LEDs were shining. Then I tried to measure terminal 1, and got nothing - no reaction at all from the multimeter, not even a zero.
I was using a new multimeter for the voltage measurements, so I thought I was doing something wrong with it. I re-read the DMM manual, and moved one of the test leads on the DMM. This was the wrong thing to do - I moved it to where it should be for DC current, not DC voltage (in a hurry, in my rubber-sole shoes, left hand in my pocket, weary wife watching..) - then moved on to measure terminal 2, and got a bright bluewhite spark!
Did I break something with that bad measurement?
Thinking back, I'm not 100 % certain the smaller tube was glowing. It wasn't easy to see, up-side-down, and it might have been reflections from the larger tube.
What do I do next?