5 US-Made 6F5 Vacuum Tubes Valves Lot Of Five 1st Quarter BW02 78 and 80 where minimum

78 and 80 where minimum (65%) is 46 and 100% is 71

Two are National Union and there are one each of GE and RCA

I played them in my Alan Eaton single-ended 45 amplifier (as an "excellent" 6SN7 substitute according to Antique Electronic Supply's "Tube Substitution Guidebook") and they sound outstanding

I am playing them in one of my Radio Craftsmen SC-2 monoblocks as I write

It measured 82/91 where minimum (65%) is 50/50 and 100% is 77/77

5 US-Made 6F5 Vacuum Tubes Valves Lot Of Five 1st Quarter BW02 78 and 80 where minimumThese five US made 6F5s were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 24, 26, 35, 48 and 49 where minimum (65%) is 25. 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