05-05-2022, 02:44 PM
So I have sent off my speaker from the 610 to get reconed and while I am waiting for it to return I have managed to borrow a tv-11 tube tester. I have a tube chart the owner printed out and on the info for the type 78 tube there is a t.c. under the p column. In the paperwork I can't find what this means. Anybody know what this means? Thx