RCA 6SL7
I am selling a quad of nearly matched USA made RCA 6SL7 vacuum tubes. The tubes were TV-7A/U tested and computer curve traced. The minimum for a 6SL7 on a TV-7A/U is 32; these tubes all test a nearly identical 56. That is each triode section in each tube tests 56 +/- 1. One step beyond TV-7A/U t...
I am selling a quad of nearly matched USA made RCA 6SL7 vacuum tubes. The tub...