5 US-Made 6F5 Vacuum Tubes Valves Lot Of Five 1st Quarter BW02 It has an engraved /

It has an engraved / stamped base

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

WE HAVE TENS OF THOUSANDS 0F VACUUM TUBES

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

5 US-Made 6F5 Vacuum Tubes Valves Lot Of Five 1st Quarter BW02 It has an engraved /These 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