Matched Pair RCA-Cunningham 6K7 Vacuum Tubes Engraved Bottles NOS-Testing Type Sextal T06 This new old stock-testing matched

This new old stock-testing matched pair of RCA 6BL7GTA dual triodes was tested on our TV7/U for shorts

new in box milspec RCA 3Q4 / JAN3Q4 tube tested to spec on our Paul Hart-calibrated TV7/U

There are two new old stock

64 and 65 where minimum (65%) is 40

Matched Pair RCA-Cunningham 6K7 Vacuum Tubes Engraved Bottles NOS-Testing Type Sextal T06 This new old stock-testing matchedThis new old stock testing, perfectly matched pair of RCA Cunningham 6K7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Both measured 54 were minimum (65%) is 36 and 100% is 55. These tubes have engraved bottles. 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