Matched Pair Toshiba 8FQ7 8CG7 6FQ7 6CG7 Vacuum Tubes Copper Support Rods Bach OM 555 032 GE-BRANDED 40KG6A / PL509 tube

GE-BRANDED 40KG6A / PL509 tube tested to spec on our Paul Hart-calibrated TV7/U

48 and 51 where minimum (65%) is 32 and 100% is 49

perfectly-matched pair of RCA 5879 tubes was tested on our Paul Hart-calibrated TV7

Tube Two measured 1750/23

32 and 33 where minimum (65%) is 25

Matched Pair Toshiba 8FQ7 8CG7 6FQ7 6CG7 Vacuum Tubes Copper Support Rods Bach OM 555 032 GE-BRANDED 40KG6A / PL509 tubeThis matched pair of 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 45 in Section One and 50 in Section Two for Tube One and 50 44 in Tube Two where minimum (65%) is 50 50 and 100% is 77 77. They have gray plates; copper support rods and excellent flashing. As I write, I am playing them in my Sound Craftsmen RC 2 monoblocks with at 6. 3 rather