Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
![]() |
EIA Base ...................................... F56
Heater Voltage ................................ 10 V
Heater Current ................................ 3.25 A
Triode
Input ......................................... 7.0 pf
Output ........................................ 4.0 pf
Grid to Plate ................................. 8.8 pf
Triode
Plate Voltage ................................. 1500 V
Plate Dissipation ............................. 125 W
Class C Oscillator/Amplifier
Plate Voltage ................................. 1250 V
Grid No. 1 Voltage ............................ -150 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 180 mA
Power Output (approx) ......................... 150 W
Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 1000 V
Grid No. 1 Voltage ............................ -200 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 160 mA
Power Output (approx) ......................... 100 W
Push Pull Class B Amplifier
Plate Voltage ................................. 1250 V
Grid No. 1 Voltage ............................ -40 V
Plate Current (Zero Signal) ................... 16 mA
Plate Current (Maximum Signal) ................ 320 mA
Load Resistance ............................... 8.4K Ω
Power Output (approx) ......................... 250 W
If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.
(c) 1994-2021 by William A. Beech, NJ7P
Sun, 26 Jun 2022 03:57:25 -0700