Matched Pair RCA 6CL6 Vacuum Tubes Black Plate Triple 3 Mica NOS-Testing August 30 2023 This new old stock-testing matched

This new old stock-testing matched pair of RCA 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box Raytheon 12K5 tube tested to spec on our Paul Hart-calibrated TV7/U

This is a Dutch auction

This RCA 872A rectifier tube appears gently-used

Matched Pair RCA 6CL6 Vacuum Tubes Black Plate Triple 3 Mica NOS-Testing August 30 2023 This new old stock-testing matchedThis new old stock testing matched pair of RCA black plate triple mica 6CL6 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 44 and 46 where minimum (65%) is 30 and 100% 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