Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing

Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-TestingThis new old stock testing matched pair of RCA 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 67 for Tube One and 68 for Tube Two where minimum (65%) is 40 and 100% is 62. These tubes have excellent flashing; Micanol bases; H2E and K1E date codes, respectively; double D getters; US Army Signal Corps SC278A contract codes and two

This new old stock-TESTING matched pair of RCA gray glass 6V6GT output tubes was tested on our Maxi-Matcher 2 for shorts

This lot of thirteen new old stock

new in box industrial grade 1B4 / #951 National Union tube tested to spec on our Paul Hart-calibrated TV7/U

Tube One (GE-MANUFACTURED

These for new old stock

They have HG YCN and EJ date codes

nostalgic-looking Super Silvertone 6P5G triode was tested on our Paul Hart-calibrated TV7/U for shorts

29 and 30 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25 and 100% is 38

I am playing it in one of my ArtSound single-ended amplifiers with Steely Dan’s seminal "Aja" album

Support Rods: copper

42/44 and 45/46 where minimum (65%) is 33/33 and 100% is 51/51

where minimum (65%) is 36 and 100% is 55