3 RCA 6U7 Vacuum Tubes Valves Lot of Three 6AG7 Octal Metal Transconductance was 1890 for Tube

Transconductance was 1890 for Tube One and 2000 for Tube Two where new/nominal is within one standard deviation of 1900

I am playing them as I write in my Alan Eaton AC-heated single-ended 45 amplifier with Pink Floyd’s "The Wall" as 6SN7 substitutes and they sound terrific

I have played them with adapters (not included) in my Radio Craftsmen RC-2 monoblocks and they sound outstanding

The GEs are civilian and the National Union is milspec

new in box RCA 12AJ6 tube tested to spec on our Paul Hart-calibrated TV7/U

3 RCA 6U7 Vacuum Tubes Valves Lot of Three 6AG7 Octal Metal Transconductance was 1890 for TubeThese three RCA 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: 36, 42 and 56 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 FORMS OF