4 Emerson 50L6 50L6GT Vacuum Tubes Valves Black / Gray Glass Lot Of Four 5551 These five Ken-Rad-MANUFACTURED 6U7 tubes

These five Ken-Rad-MANUFACTURED 6U7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

These nine RCA 17BE3 / 17BZ3 tubes tested to spec on our Paul Hart-calibrated TV7/U

This trio of RCA 6K7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

MOST OF THE TUBES WE SELL ARE OVER 70 YEARS OLD

They tested 53 and 78 where minimum (65%) is 40 and 100% is 62

4 Emerson 50L6 50L6GT Vacuum Tubes Valves Black / Gray Glass Lot Of Four 5551 These five Ken-Rad-MANUFACTURED 6U7 tubesThis lot of four Emerson coated glass 50L6GT tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 53 (black glass), 58, 59 and 62 where minimum (65%) is 45. 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