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

Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Мелодия Melodiya LPThis 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 62 for Tube One and 63 for Tube Two where minimum (65%) is 40 and 100% is 62. These tubes have excellent flashing; Micanol bases; double D getters; US Army Signal Corps SC278A contract codes and two additional support rods per tube for

new in box RCA 6AF3 tubes tested to spec on our Paul Hart-calibrated TV7/U

It measured 54/66 where minimum (65%) is 50/50

single-ended 45 amplifier and they sound great

ITEMS ARE GUARANTEED AS-DESCRIBED ON SHIPMENT

The spine is in fine shape with no loose pages and the dust jacket has only very-minor nicks and tears

5                                                                                                                      Shipping $80

new in box Zenith 1T5GT tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 78/73 while Tube Two measured 81/72 where minimum (65%) is 58

Minimum (65%) is 50

Transconductance measured 60/79

an additional mica spacer for low microphonics

42/61 (sic)