5 Ken-Rad 6U7 Vacuum Tubes Valves Lot Of Five Quintet 6K This new old stock-testing RCA

This new old stock-testing RCA clear top 6CG7 / 6FQ7 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One measured 45/40 while Tube Two measured 52/50 where minimum (65%) is 40/40 and 100% is 62/62

1 12SK7GT/G

This lot of four new old stock

5 standard deviations of 3600 micromhos and tend to be rather erratic readings-wise like their 12AT7 cousins)

5 Ken-Rad 6U7 Vacuum Tubes Valves Lot Of Five Quintet 6K This new old stock-testing RCAThese 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