4 Ken-Rad 50L6 50L6GT Vacuum Tubes Valves Black / Gray Glass Lot Of Four Matched Pair 6AX4 36/37 and 40/38where minimum (65%)

36/37 and 40/38where minimum (65%) is 40/40

This pressing has light surface noise audible in quiet passages and barely audible in voice-level passages

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

but followed the original score and was recorded in the latter 1950s

42 and 56 where minimum (65%) is 40

4 Ken-Rad 50L6 50L6GT Vacuum Tubes Valves Black / Gray Glass Lot Of Four Matched Pair 6AX4 36/37 and 40/38where minimum (65%)This lot of four Ken Rad 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 38, 58, 60 and 68 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 QUESTIONS. 1. MOST