CTC-9 Winslow

[old_tv_nut]

Have you tested and/or replaced tubes?

[Zsuttle]

Originally Posted by old_tv_nut

Have you tested and/or replaced tubes?

Yeah, tubes have been tested. The only substitute I had to make was for a 12AZ7, which I used a 12AT7 I had laying around. Allegedly, they should substitute well. I had ordered a replacement which turned out to be a dud itself. Hence the substitute while I wait