3 RCA 6SF7 Vacuum Tubes Valves Lot Of Three Matched Pair 78 These six Cunningham C-324 globe

These six Cunningham C-324 globe

They have DC and BD date codes

Tube One measured 54 while Tube Two also measured 54

5 or nine out of ten

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

3 RCA 6SF7 Vacuum Tubes Valves Lot Of Three Matched Pair 78 These six Cunningham C-324 globeThis lot of three RCA 6SF7 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They tested as follows: 66 38, 70 50 and 72 60 where minimum (65%) is 50 40 and 100% is 77 62. 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