Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Мелодия Melodiya LP 5 Shipping $80

5                                                                                                                      Shipping $80

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

an additional mica spacer for low microphonics

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

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

Matched Pair RCA 1625 / VT-136 Vacuum Tubes Milspec NOS-Testing Мелодия Melodiya LP 5 Shipping $80This 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