3 Ken-Rad 6D6 Vacuum Tubes Valves Black Glass Lot of Three Talks With American new in box US-made 12BD6

new in box US-made 12BD6 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box GE 6AH6 tubes tested to spec on our Paul Hart-calibrated TV7/U

crenelated

These five Ken-Rad-MANUFACTURED 6U7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

(New US 6L6GCs typically test with plate current from the low 20s to mid 30s with transconductance from 2200 micromhos or so

3 Ken-Rad 6D6 Vacuum Tubes Valves Black Glass Lot of Three Talks With American new in box US-made 12BD6This lot of three Ken Rad 6D6 tubes was 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) 46, 47 and 48 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 SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1.