4 Canadian Number / Type 76 #76 Vacuum Tubes Valves Lot Of Four 12SF7 OM Tube One measured 1860 micromhos

Tube One measured 1860 micromhos and drew 23

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

6 milliamps' plate current and measured 1610 micromhos

1 milliamps' plate current

4 Canadian Number / Type 76 #76 Vacuum Tubes Valves Lot Of Four 12SF7 OM Tube One measured 1860 micromhosThis 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