JAN CTL TUNG-SOL. this Tube was tested on the Jackson 103 tester were 25 is the minimum good for this tube type and all four tubes tested at 40 which is a very strong reading for this Tube and they’re all very tightly matched.
JAN CTL TUNG-SOL. this Tube was tested on the Jackson 103 tester were 25 is the minimum good for this tube type and all four tubes tested at 40 which is a very strong reading for this Tube and they’re all very tightly matched.