11 RCA 6D6 Vacuum Tubes Valves Gray Glass Lot of Eleven Type 27 By Brand an anode radiator for cooler

an anode radiator for cooler operation and longer tube life and a banded-cross top mica spacer

OEM-BRANDED black glass 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts

3 milliamps' plate current while Tube Two drew 23

They are slightly microphonic

gray ladder-plates

11 RCA 6D6 Vacuum Tubes Valves Gray Glass Lot of Eleven Type 27 By Brand an anode radiator for coolerThese 11 RCA gray glass 6D6 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured (from left to right, top to bottom) 39, 43, 44, 45, 46, 48, 56, 56, 58, 60 and 60 where minimum (65%) is 40. 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 202 372 6931 IF YOU DO NOT