Matched Pair JJ 6BQ5 EL84 6P14 6P14P Vacuum Tubes With Boxes March 28 2023 From the very bottom to

From the very bottom to the very top of this rheostat

excellent flashing and what appears to be a US Navy logo on the base

52 and 60 where minimum (65%) is 36 and 100% is 55

These three CBS 6K6GT tubes were tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of -36 volts for shorts

They measured 18

Matched Pair JJ 6BQ5 EL84 6P14 6P14P Vacuum Tubes With Boxes March 28 2023 From the very bottom toThis matched pair of JJ 6BQ5 EL84 6P14 6P14P output tubes was tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of 14 volts for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 7440 micromhos for Tube One and 7400 for Tube Two. Plate current draw was 29. 5 and 30. 7 milliamps, respectively. (New EL84s typically test from the mid 20s to mid 30s with transconductance from 7000 micromhos.) These