6 RCA 50B5 Vacuum Tubes Valves Black Plate Lot Of Six 5V6GT Octal These matched pair of engraved-base

These matched pair of engraved-base

new in box US-made 12K7GT tubes tested to spec on our Paul Hart-calibrated TV7/U

not included) and they sound excellent

new in box Raytheon 1H5GT tube tested to spec on our Paul Hart-calibrated TV7/U

wire or mica snubbers (for low microphonics) and excellent flashing

6 RCA 50B5 Vacuum Tubes Valves Black Plate Lot Of Six 5V6GT Octal These matched pair of engraved-baseThese six RCA black plate RCA 50B5 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 40, 44, 48, 48, 61 and 66 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