2 US-Made 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Lot Of Two 12T10 NOS new in box milspec RCA

new in box milspec RCA US Navy CRC 12A6 tubes tested to spec on our Paul Hart-calibrated TV7/U

OEM-BRANDED black glass 6K6GT tubes were tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts and tested as follows:

coated glass 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

58 and 60 where minimum (65%) is 42

They are the new

2 US-Made 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Lot Of Two 12T10 NOS new in box milspec RCAThis new old stock testing matched pair of US made 1625 VT 136 output triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 68 for Tube One and 78 for Tube Two where minimum (65%) is 40 and 100% is 62. These tubes have excellent flashing; Micanol bases; double, dimpled sheet getters and two additional support rods per tube for increased rigidity and lowered