Matched Pair Toshiba 6FQ7 6CG7 Vacuum Tubes Copper Support Rods Oris 20MM End Link These five Philco Type 37

These five Philco Type 37 triodes were tested on our Paul Hart-calibrated TV7/U for shorts

Philco-BRANDED 5Y3GT rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

even though they test on the cusp

Gain (Mu (µ): 16

All three DVDs are present and play fine

Matched Pair Toshiba 6FQ7 6CG7 Vacuum Tubes Copper Support Rods Oris 20MM End Link These five Philco Type 37This 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 73 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