5 Toshiba 8FQ7 8CG7 6FQ7 6CG7 Vacuum Tubes Copper Support Rods Lot Of Five

5 Toshiba 8FQ7 8CG7 6FQ7 6CG7 Vacuum Tubes Copper Support Rods Lot Of FiveThis lot of five Toshiba MANUFACTURED 8FQ7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 49 56, 49 65, 57 52, 70 79 and 75 76 where minimum (65%) is 50 50 and 100% is 77 77. They have gray plates; O getters; copper support rods and excellent flashing. As I write, I am playing them in my Sound Craftsmen RC 2 monoblocks at 6. 3 rather than 7. 5 volts

It has double

Both tubes have 2-48 SC 471 date/contract codes and are World War Two vintage

This lot of five Toshiba-MANUFACTURED 8FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

gas and transconductance on our Paul Hart-calibrated TV7/U as well as a Hickok and a Superior

new in box Sylvania 6JH6 tubes tested to spec on our Paul Hart-calibrated TV7/U

This tube has a bottom D getter and an E9M date code which means it was likely made by Sylvania

new in box Tung-Sol 32L7GT tubes tested to spec on our Paul Hart-calibrated TV7/U

They were also Apex-Matched with readings very-similar to our own

likely Tung-Sol-MANUFACTURED) measured 31 while Tube Two (no silkscreening 6AK5-LABELED

This tube has steel support rods

It measured 54/53 where minimum (65%) is 40/40 and 100% is 62/62

on our Paul Hart-calibrated TV7/U where minimum (65%) is 40/40