4 Canadian Number / Type 76 #76 Vacuum Tubes Valves Lot Of Four 12SF7 OM 6 milliamps' plate current and

6 milliamps' plate current and measured 1610 micromhos

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

new in box GE 12BL6 tubes tested to spec on our TV7/U

This matched pair of RCA 12SN7GT dual triodes was tested on our Paul Hart-calibrated TV7 for shorts

4 Canadian Number / Type 76 #76 Vacuum Tubes Valves Lot Of Four 12SF7 OM 6 milliamps' plate current andThis 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