NJ7P SQL Tube Database Query

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4604
Beam Power Pentode

EIA Base & Outline

Mechanical Data

EIA Base ...................................... 7CL

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.65 A

Direct Interelectrode Capacitances (approx)

Beam Pentode
Input ......................................... 11 pf
Output ........................................ 8.5 pf
Grid to Plate ................................. 0.24 pf

Maximum Ratings (Design Center Values)

Beam Pentode
Plate Voltage ................................. 750 V
Grid No. 2 Voltage ............................ 250 V
Plate Dissipation ............................. 25 W
Grid No. 2 Dissipation ........................ 3 W

Characteristics and Typical Operation

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