2 Sovtek 6BQ5 EL84 Vacuum Tubes NOS-Testing Lot Of Two J-Slot 12AX7-Size new in box RCA 14F8

new in box RCA 14F8 tube tested to spec on our Paul Hart-calibrated TV7/U

9 milliamps with a transconductance of 2390 micromhos while Tube Two measured 21

new in box Telefunken PL82 tube tested to spec on our Paul Hart-calibrated TV7/U

There were no shorts or gas and it measured 40/44 where minimum (65%) is 32/32 and 100% 66/66

Five are 6S4As and one is a 6S4

2 Sovtek 6BQ5 EL84 Vacuum Tubes NOS-Testing Lot Of Two J-Slot 12AX7-Size new in box RCA 14F8This new old stock testing pair of Sovtek 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 7930 micromhos for Tube One and 7630 for Tube Two. Plate current draw was 37. 7 milliamps for Tube One and 30. 8 for Tube Two. (New EL84s typically test from the mid 20s to mid 30s with