Sylvania 5Y3 5Y3GT Vacuum Tube Rectifier Black Plate 2nd Quarter BW20 It was made in the

It was made in the Soviet Union and sounds better than many Free World LPs

Both are acid-etched

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

Special Features: black/dark plates

but also because if it is a brand other than RCA

Sylvania 5Y3 5Y3GT Vacuum Tube Rectifier Black Plate 2nd Quarter BW20 It was made in theThis 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