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Test results are 625/675 and 720/740 where the minimum is 475/475
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Used tubes from same audio channel, made in Germany. Results from test on Hickok 752A: 7000/725..
$44.99 USD
Tested 6750 mhos on Hickok 752A, where the minimum new is 4750Made in West Germany and has halo gett..
$28.99 USD
Tested very strong at 600 mhos on Hickok 752A, where the minimum new is 300 Black plate tube wi..
$11.99 USD
Tested very strong at 2750 (min 1350) and 1200/1200 (min 800/800) mhos on Hickok 752A..
$19.99 USD
Tags: ECH81, 6AJ8