5 Ken-Rad 6U7 Vacuum Tubes Valves Lot Of Five Quintet 6K They tested 54

They tested 54

new in box RCA 6DW4B tubes tested to spec on our Paul Hart-calibrated TV7

This Sylvania 7F7 was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One measured 30 while Tube Two measured 32 where minimum (65%) is 22

new in box RCA 13GF7 13GF7A tubes tested to spec on our Paul Hart-calibrated TV7/U

5 Ken-Rad 6U7 Vacuum Tubes Valves Lot Of Five Quintet 6K They tested 54These five Ken Rad MANUFACTURED 6U7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. They tested (from left to right) as follows: 56, 58, 64, 68 and 68 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. MOST