11 RCA 6D6 Vacuum Tubes Valves Gray Glass Lot of Eleven Type 27 By Brand new in box matched pair

new in box matched pair of RCA black plate 6DQ5 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

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

new in box RCA 12AJ6 tube tested to spec on our Paul Hart-calibrated TV7/U

This matched pair of new old stock

Tube One drew 16

11 RCA 6D6 Vacuum Tubes Valves Gray Glass Lot of Eleven Type 27 By Brand new in box matched pairThese 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