Matched Pair Sylvania Silvertone 6K7 6K7GT Vacuum Tubes Valves NOS-Testing
Matched Pair Sylvania Silvertone 6K7 6K7GT Vacuum Tubes Valves NOS-Testing
Matched Pair Sylvania Silvertone 6K7 6K7GT Vacuum Tubes Valves NOS-Testing
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Matched Pair Silvertone 6K7 6K7GT Vacuum Tubes NOS-Testing

$17.67
$17.67
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This new old stock-testing matched pair of Sylvania-MANUFACTURED. Silvertone-BRANDED 6K7GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts, gas and transconductance. There were no shorts or gas,

Tube One measured 56 while Tube Two measured 57 were minimum (65%) is 36 and 100% is 55.