I’m a bit stuck trying to understand how closely a bunch of valves I got as singles are. I'm trying to create a matched pair. Can you help me translate the ratings given? All tubes are the same type a 12A
Valve 1
TESTED gm1600
Valve 2
Tested on a TV 7
Results = 72
Valve 3
Tested on a Hickok 6000A :
Nominal New = 7800
Min = 4680
Results = 9200
Valve 4
Tested on TV-7/B. The tubes test very strong with a reading of 75. Minimum is 42.
Hope this makes sense!
Thanks, Tim
Valve 1
TESTED gm1600
Valve 2
Tested on a TV 7
Results = 72
Valve 3
Tested on a Hickok 6000A :
Nominal New = 7800
Min = 4680
Results = 9200
Valve 4
Tested on TV-7/B. The tubes test very strong with a reading of 75. Minimum is 42.
Hope this makes sense!
Thanks, Tim
Last edited: