4 RCA 50L6 50L6GT Vacuum Tubes Valves Black Plate Clear Bottle Lot Of Four January 30 2026 These tubes have dark-gray

These tubes have dark-gray

new in box GE 12AX4 tubes tested to spec on our Paul Hart-calibrated TV7/U

This lot of RCA 2050 thyratron tubes were tested on our Paul Hart-calibrated TV7/U

There were no shorts or gas and they measured 36/30

What makes this funny is that a major US defense contractor likely committed a number of felonies by smuggling communist Soviet tubes into the US at the height of the Cold War

4 RCA 50L6 50L6GT Vacuum Tubes Valves Black Plate Clear Bottle Lot Of Four January 30 2026 These tubes have dark-grayThis lot of four RCA black plate, clear bottle 50L6GT tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 50, 55, 64 and 72 where minimum (65%) is 45 and 100% is 69. 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