Matched Pair Toshiba 6FQ7 6CG7 Vacuum Tubes Copper Support Rods 6W4GT T34 Tube Two 85/86

Tube Two 85/86

black and silver bottles and 3-52 188-5 and 635 188-5 provenance/date codes

These tubes were made in the same factory and come from that cusp in time after the RCA buyout of Cunningham

These six milspec new old stock

This matched pair of GE 25L6GT tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair Toshiba 6FQ7 6CG7 Vacuum Tubes Copper Support Rods 6W4GT T34 Tube Two 85/86This matched pair of 6FQ7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 73 in Section One and 72 in Section Two for Tube One and 75 70 in Tube Two where minimum (65%) is 50 50 and 100% is 77 77. They have short, gray plates; O getters; copper support rods and excellent flashing. As I write, I am playing them in my Sound Craftsmen RC 2 monoblocks