CBS-Hytron 5Y3 USNCHY5Y3WGTA Vacuum Tube Black Plate Milspec Triple 3 Mica Micanol Base 12Q7GT Grid Cap Tube One (Philco-LABELED

Tube One (Philco-LABELED

I can't tell you how they sound as we don't have any equipment that runs them

Tube One drew 16

This matched pair of Sylvania black plate 6CL6 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

These tubes have acid-etched codes and designations as well as silk-screened 67-05 67-22 188-5 and 68-26 188-5 67-50 production run/provenance codes

CBS-Hytron 5Y3 USNCHY5Y3WGTA Vacuum Tube Black Plate Milspec Triple 3 Mica Micanol Base 12Q7GT Grid Cap Tube One (Philco-LABELEDThis milspec CBS Hytron USN CHY 5Y3WGTA 5Y3 black plate rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 60 57 where minimum (65%) is 40 40 and 100% is 62 62. This tube is built like a tank and in great shape as well. It is massively reinforced against vibration with three mica spacers as well as top wire snubbers; it has a top D getter: a micanol base for