This new old stock, new in box matched pair of Tungsram E80CC / 6085 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts, gas and transconductance. There were no shorts or gas.
Transconductance measured 44/44 for Tube One and 44/46 for Tube Two were minimum (65%) is 32/32 and 100% is 49/49.
They have O getters; copper support rods; great flashing; gray plates and 1652 67 and 1632 67 date/factory codes.