Matched Pair RCA 5879 Vacuum Tubes NOS-Testing June 09 2026 Tube One measured 1690 micromhos

Tube One measured 1690 micromhos and drew 19

Tube One measured 76/73 while Tube Two measured 79/72 where minimum (65%) is 50/50 and 100% is 77/77

new in box US-made 1P5GT tubes tested to spec on our Hickok 800

WE HAVE HAD FEWER THAN A DOZEN LESS-THAN-FIVE-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

They tested 54

Matched Pair RCA 5879 Vacuum Tubes NOS-Testing June 09 2026 Tube One measured 1690 micromhosThis new old stock TESTING, perfectly matched pair of RCA 5879 tubes was tested on our Paul Hart calibrated TV7. for shorts, gas and transconductance. There were no shorts or gas. Both tubes measured 42 where minimum (65%) is 25 and 100% is 35. These tubes have top, O getters; steel support rods and outstanding flashing. 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"