Sylvania 5Y3 5Y3GT Vacuum Tube Rectifier Black Plate 2nd Quarter BW20 This Hytron JAN-CHY-12SN7GT milspec dual

This Hytron JAN-CHY-12SN7GT milspec dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

new in box (for Tube Two) GE 12SN7GT dual triodes was tested on our Jackson 648 Mutual Conductance tester for shorts

This matched pair of Hytron black glass 6V6GT output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

I am playing them as I write with Mino Cinelu's eponymous album in my Mini Mite 2013 and they sound great

Sylvania 5Y3 5Y3GT Vacuum Tube Rectifier Black Plate 2nd Quarter BW20 This Hytron JAN-CHY-12SN7GT milspec dualThis black plate Sylvania 5Y3GT rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 55 51 where minimum (65%) is 40 40 and 100% is 62 62. It has a top, O getter and an 805 ACP date provenance code. 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