Matched Pair Toshiba 8FQ7 8CG7 6FQ7 6CG7 Vacuum Tubes Copper Support Rods August 27 2025 Probably Mullard

Probably Mullard

I do not recommend them for applications with vibration

For sale is one new old stock

totally unsuited for use in guitar amps or any other vibratory environment

wire snubbers (for low microphonics) and excellent flashing

Matched Pair Toshiba 8FQ7 8CG7 6FQ7 6CG7 Vacuum Tubes Copper Support Rods August 27 2025 Probably MullardThis 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 67 in Section One and 70 in Section Two for Tube One and 71 72 in Tube Two 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