Matched Pair RCA 12J5 12J5GT Vacuum Tubes NOS NIB Social Change In new in box Philco 25Z5

new in box Philco 25Z5 tubes tested to spec on our Paul Hart-calibrated TV7/U

This lot of three Sylvania 12Q7G tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box Sylvania 2A4G tube tested to spec

This Philco globe / balloon-style bottle number 36 tube tested 24 on our Paul Hart-calibrated TV7/U where minimum (65%) is 26 and 100% is 40

Matched Pair RCA 12J5 12J5GT Vacuum Tubes NOS NIB Social Change In new in box Philco 25Z5This new old stock, new in box (for Tube Two) matched pair of RCA 12J5GT triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 81 while Tube Two measured 88. Minimum (65%) is 50. They have tall bases; medium bottles; dimple getters; black ladder plates; excellent flashing and copper support rods. One of the tubes has an inert, glass chip inside. WE HAVE SCORES OF