Matched Trio RCA Black Plate 6BY5 6BY5GA Vacuum Tube Valves 3 Lot Of Three Of Ferdinand new in box 6SR7 tubes

new in box 6SR7 tubes tested to spec on our Paul Hart-calibrated TV7/U

They measured 90/82 for Tube One and 91/84 for Tube Two where minimum (65%) is 57/57

These eight Philco number / type 77 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

This new in box JJ 6BQ5 was tested on our Maxi-Matcher with 325 volts on the plates and a bias of -14 volts for shorts

Tube One measured 31 while Tube Two measured 32 where minimum (65%) is 22 and 100% is 34

Matched Trio RCA Black Plate 6BY5 6BY5GA Vacuum Tube Valves 3 Lot Of Three Of Ferdinand new in box 6SR7 tubesThis matched trio of RCA 6BY5GA tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas and they measured 52 52, 52 52 and 54 54 where minimum (65%) is 40 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