Sylvania 5Y3 5Y3GT JANCHS5Y3GT VT197-A Milspec Vacuum Tube Rectifier Black Plate Number No 1 Chicago sheet getter

sheet getter

This milspec Brimar CV4014 / 6064 / EF91 / 6AM6 tube tested to spec on our Paul Hart-calibrated TV-7/U

excellent flashing and 1063 6217 150 factory/date codes

7 milliamps while transconductance measured 2910 micromhos

These tubes have narrow 19 MM plates

Sylvania 5Y3 5Y3GT JANCHS5Y3GT VT197-A Milspec Vacuum Tube Rectifier Black Plate Number No 1 Chicago sheet getterThis new old stock testing, black plate, milspec Sylvania 5Y3GT JAN CHS 5Y3GT VT197 A rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 48 52 where minimum (65%) is 40 40 and 100% is 62 62. It has a bottom, sheet getter, nice flashing for its type; a US Army Signal Corps anchor logo and a K4 date code. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT