4 Canadian Number / Type 76 #76 Vacuum Tubes Valves Lot Of Four 12SF7 OM Transconductance measured 82 for Tube

Transconductance measured 82 for Tube One and 84 for Tube Two where minimum (65%) is 58

There were no shorts and it measured a perfectly-balanced 44/44 where minimum (65%) is 34/32 and 100% is 52/52

This lot of four Ken-Rad coated glass 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

6 milliamps' plate current and measured 1610 micromhos

RCA-BRANDED 6HG8 / ECF86 tubes tested to spec on our Paul Hart-calibrated TV7/U

4 Canadian Number / Type 76 #76 Vacuum Tubes Valves Lot Of Four 12SF7 OM Transconductance measured 82 for TubeThis quad of Canadian MANUFACTURED type 76 triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 36, 44, 52 and 60 where minimum (65%) is 36 and 100% is 55. These tubes have black, rounded plates and excellent flashing. 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