Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Franz Andre These six US-made 84 /

These six US-made 84 / 6Z4 rectifier tubes were tested on our Paul Hart-calibrated TV7/U for shorts

58 and 67 where minimum (65%) is 48

(New US 6L6GCs typically test with plate current from the low 20s to mid 30s with transconductance from 2200 micromhos or so

34/38 and 38/36 where minimum (65%) is 25/25 is 39/39

These sixteen new old stock

Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Franz Andre These six US-made 84 /This 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