General Electric GE 5Y3 5Y3GT Vacuum Tube Rectifier Black Plate Gray Glass outstanding flashing and a TOR

outstanding flashing and a TOR date code

This matched pair of Westinghouse black plate 12AU7A / ECC82 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One's gain was quite a bit lower and still should be useful if your amp has a balance control

copper support rods and outstanding flashing

There were no shorts or gas and they tested as follows:

General Electric GE 5Y3 5Y3GT Vacuum Tube Rectifier Black Plate Gray Glass outstanding flashing and a TORThis black plate GE 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 58 50 where minimum (65%) is 40 40 and 100% is 62 62. It has a bottom, D getter and a 4 09 188 5 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