Matched Pair RCA 12J5 12J5GT Vacuum Tubes NOS NIB Social Change In anode radiators for cooler operation

anode radiators for cooler operation and longer tube life and gray and silver bottles

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

These matched pair of engraved-base

new in box Sylvania 2A4G tube tested to spec

Tube One measured 17

Matched Pair RCA 12J5 12J5GT Vacuum Tubes NOS NIB Social Change In anode radiators for cooler operationThis 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