Matched Pair RCA 6DE4 Vacuum Tube Rectifiers US-Made 6AV5 6AV5GT

Matched Pair RCA 6DE4 Vacuum Tube Rectifiers US-Made 6AV5 6AV5GTThis perfectly matched pair of RCA MANUFACTURED, 6DE4 rectifier tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. Both measured 71 where minimum (65%) is 50 and 100% is 77. Tube Two is labeled "Zenith." They have gray plates; short bases; side O getters VAE and 60 43 274 date provenance codes, respectively and crenelated, rectangular top and bottom spacers. WE HAVE SCORES OF THOUSANDS OF

They tested 54

Transconductance (Maxi-Matcher): 1761/1780

three (rather than two) mica spacers for improved mechanical stability and low microphonics

Tube One: 32/39

Transconductance measured 62 for Tube One and 63 for Tube Two where minimum (65%) is 40 and 100% is 62

Please note that both tubes have hairline cracks in their solidly-secured bases

too to bottom):

Tube Two Plate Current Draw: 27

new in box Amperex 6CB6A / 6CF6 tubes tested to spec on our Paul Hart-calibrated TV7/U

a top crenelated mica spacer and a smooth bottom spacer and nice flashing

new in box US-made 9003 / JAN-CKR-9003 / VT-203 / JRC9003 tubes tested to spec on our on our Paul Hart-calibrated TV7/U

FOUR-STAR REVIEWS OR HAVE LOST A CUSTOMER BECAUSE I REFUSED TO EITHER ISSUE A REFUND FOR A TUBE THAT WENT BAD AFTER IT HAD BEEN USED OR A BUYER KNEW NOTHING ABOUT TUBE REBRANDING AND CLAIMED THAT SOMETHING MADE BY TUNG-SOL AND BRANDED BY EMERSON WAS MADE BY EMERSON