Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
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EIA Base ...................................... 7CL
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.65 A
Beam Pentode
Input ......................................... 11 pf
Output ........................................ 8.5 pf
Grid to Plate ................................. 0.24 pf
Beam Pentode
Plate Voltage ................................. 750 V
Grid No. 2 Voltage ............................ 250 V
Plate Dissipation ............................. 25 W
Grid No. 2 Dissipation ........................ 3 W
Class C Amplifier
Plate Voltage ................................. 400 V
Grid No. 2 Voltage ............................ 190 V
Grid No. 1 Voltage ............................ -60 V
Grid No. 1 Current ............................ 2 mA
Plate Current ................................. 150 mA
Grid No. 2 Current ............................ 11 mA
Driving Power ................................. 4.5 W
Power Output (approx) ......................... 30 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
Thu, 30 Jun 2022 03:45:09 -0700