SYLVANIA 6DE7 NIB NOS FREE SHIPPING!!! - $10 - (Hutchinson, KS)

These tubes are unused except for the time testing. These tubes are tested for actual Transconductance, not just emission. Emission testing only tests the cathode section of a tube and ignores the actual function of the tube in an active circuit, by ignoring all of the additional elements and their function. Buy with confidence that these tubes are ACTUALLY tested on quality equipment by a skilled FCC licensed radio engineer with over 40 years experience.

Posted in Hutchinson, KS, Electronics
From ebay.com - 1 month ago