3 Wizard Number / Type 76 #76 Vacuum Tubes Valves Lot Of Three Noval T11 new in box RCA milspec

new in box RCA milspec 5763 / JRC-5763 tubes tested to spec on our Paul Hart-calibrated TV7/U

This Sylvania 7F7 was tested on our Paul Hart-calibrated TV7/U for shorts

There were no shorts or gas and they measure as follows:

round mica spacers and excellent flashing

but that was the fashion back in the 1940s

3 Wizard Number / Type 76 #76 Vacuum Tubes Valves Lot Of Three Noval T11 new in box RCA milspecThis trio of Wizard 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 40, 48 and 55 where minimum (65%) is 36 and 100% is 55. These tubes have black, rounded plates; rectangular mica spacers (with rounded edges on top); wire snubbers (for low microphonics) and excellent flashing. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE