Matched Pair RCA 6CL6 Vacuum Tubes Black Plate Triple 3 Mica NOS-Testing August 30 2023 new in box Raytheon 12K5

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

This lot is ideal for art applications and in prototyping a circuit where a tube may be damaged and you need a few who won't be missed if they are damaged

new in box Sylvania 6SH7 tubes tested to spec on our Paul Hart-calibrated TV7/U

This is a Dutch auction

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Matched Pair RCA 6CL6 Vacuum Tubes Black Plate Triple 3 Mica NOS-Testing August 30 2023 new in box Raytheon 12K5This 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