Matched Pair Sylvania 6X5 6X5GT Black Plate Vacuum Tubes Valves Rectifiers RCA Black Plate new in box Philco 10DE7

new in box Philco 10DE7 tubes tested to spec on our Paul Hart-calibrated TV7/U

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new in box RCA 17CU5 / 17C5 tubes tested to spec on our Paul Hart-calibrated TV7/U

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Matched Pair Sylvania 6X5 6X5GT Black Plate Vacuum Tubes Valves Rectifiers RCA Black Plate new in box Philco 10DE7This matched pair of Sylvania 6X5GT rectifier tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. They measured 55 55 and 57 52 where minimum (65%) is 40 40 and 100% is 62 62. They have black plates; dimpled, foil getters and rectangular top and bottom spacers. 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"