6 Ken-Rad 6J7 Vacuum Tubes Lot Of Six DVD Combo new in box PhilipsECG 6J10

new in box PhilipsECG 6J10 / 6Z10 tubes tested to spec on our Paul Hart-calibrated TV7/U

This matched pair of Ken-Rad 6K6 6K6GT tubes was tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of -36 volts for shorts

(New US-made 6L6s typically test with plate current from the low 20s to mid 30s with transconductance from 2200 micromhos or so

solid top mica spacers

It was not an original recording

6 Ken-Rad 6J7 Vacuum Tubes Lot Of Six DVD Combo new in box PhilipsECG 6J10These eight US made 1620 6J7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 22, 26 32, 36, 40 and 43 where minimum (65%) is 31. 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. MOST FORMS