Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Cunningham 3834 They are slightly microphonic

They are slightly microphonic

clear bottle 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

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WE HAVE HAD A DOZEN LESS-THAN-FOUR-STAR REVIEWS OR HAVE LOST A CUSTOMER BECAUSE WE 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

Matched Pair Sylvania 6V6 6V6GT Gray And Silver Bottle Silver Top Vacuum Tubes NOS-Testing Cunningham 3834 They are slightly microphonicThis new old stock testing matched pair of silver top Sylvania 6V6GT output tubes was tested on our Maxi Matcher 2 for shorts, gas and transconductance. There were no shorts or gas. Plate current measured 31. 8 milliamps and transconductance was 2710 micromhos for Tube One. Tube Two measured 32. 3 2680. (New US made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or so.) They have tall