3 RCA 6SF7 Vacuum Tubes Valves Lot Of Three Matched Pair 78 Wish I could tell you

Wish I could tell you how they sound

They have DC and BD date codes

It is suitable for 211

This RCA black plate 6LQ6 tube tested 80 on our Paul Hart-calibrated TV7/U where minimum is 54 and new is 100

Tube One measured 54 while Tube Two also measured 54

3 RCA 6SF7 Vacuum Tubes Valves Lot Of Three Matched Pair 78 Wish I could tell youThis 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