Matched Pair RCA-Cunningham 6K7 Vacuum Tubes Engraved Bottles NOS-Testing Type Sextal T06 Tube One measured 1770 micromhos

Tube One measured 1770 micromhos

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

64 and 65 where minimum (65%) is 40

There are two new old stock

These seven Philco 24 globe

Matched Pair RCA-Cunningham 6K7 Vacuum Tubes Engraved Bottles NOS-Testing Type Sextal T06 Tube One measured 1770 micromhosThis 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