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

Transconductance measured 58 for Tube One and 59 for Tube Two where minimum (65%) is 40

new in box GE 21LU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

MOST OF THE TUBES WE SELL ARE OVER 70 YEARS OLD

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