Trio RCA Gray Glass 12BY7 12BY7A Vacuum Tubes Valves 6AR6WA Milspec There were many pops and

There were many pops and ticks

new in box RCA 6BK4 / 6BK4A tubes tested to spec on our Paul Hart-calibrated TV7/U

This black plate GE 5Y3GT rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

This matched-pair of GE 6AU6A tubes was tested on our Paul Hart-calibrated TV7/U tube tester for shorts

These tubes have excellent frequency response

Trio RCA Gray Glass 12BY7 12BY7A Vacuum Tubes Valves 6AR6WA Milspec There were many pops andThis trio of RCA gray glass 12BY7 12BY7A tubes was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 55 while Tube Two measured 60. Tube Three measured 62. (Minimum (65%) is 46. 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