Matched Pair Silvertone 6K7 6K7GT Vacuum Tubes NOS-Testing ECF80 T28 This Tung-Sol 13DE7 tested to

This Tung-Sol 13DE7 tested to spec on our Paul Hart-calibrated TV7/U

These tubes have copious bottom flashing

new in box Telefunken PL82 tube tested to spec on our Paul Hart-calibrated TV7/U

38 and 44 where minimum is (65%) is 36

new in box GE 7025 (12AX7 ECC83) dual triode for your Univalve or other application requiring a single 12AX7-type tube

Matched Pair Silvertone 6K7 6K7GT Vacuum Tubes NOS-Testing ECF80 T28 This Tung-Sol 13DE7 tested toThis 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. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT