Matched Pair RCA Radiotron Number / Type 76 #76 Vacuum Tubes Valves 17C5 Septal Tube One measured 63 while

Tube One measured 63 while Tube Two measured 67 where minimum (65%) is 43

Both measured 72 where minimum (65%) is 58

This paperback book is in very good condition

gray plates and an anode radiator for cooler operation and longer life

These tubes have shiny

Matched Pair RCA Radiotron Number / Type 76 #76 Vacuum Tubes Valves 17C5 Septal Tube One measured 63 whileThis perfectly matched pair of RCA Radiotron type 76 triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 48 for both where minimum (65%) is 36 and 100% is 55. These tubes have black, rounded plates; round top mica and rectangular bottom spacers; mica snubbers (for lowered microphonics) and excellent flashing. I have played them in my Radio Craftsmen RC 2