NJ7P SQL Tube Database Query

A horizontal ribbon.

Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.

A horizontal ribbon.

RK48
Power Pentode

EIA Base & Outline

EIA Base: F64

Mechanical Data

EIA Base ...................................... F64

Electrical Data

Heater Voltage ................................ 10 V
Heater Current ................................ 5.0 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 17 pf
Output ........................................ 13 pf
Grid to Plate ................................. 0.13 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 400 V
Plate Dissipation ............................. 100 W
Grid No. 2 Dissipation ........................ 22 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ -100 V
Grid No. 1 Current ............................ 6.5 mA
Plate Current ................................. 180 mA
Grid No. 2 Current ............................ 40 mA
Driving Power ................................. 1.0 W
Power Output (approx) ......................... 250 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 1500 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ -100 V
Grid No. 1 Current ............................ 6.5 mA
Plate Current ................................. 148 mA
Grid No. 2 Current ............................ 50 mA
Driving Power ................................. 1.0 W
Power Output (approx) ......................... 165 W

Class C Modulated Amplifier (Grid)
Plate Voltage ................................. 1500 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ -145 V
Grid No. 1 Current ............................ 1.5 mA
Plate Current ................................. 77 mA
Grid No. 2 Current ............................ 10 mA
Driving Power ................................. 1.6 W
Power Output (approx) ......................... 40 W

A horizontal ribbon.

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.

Please enter the tube number:

This database contains data on thousands of tubes. Every effort has been made to insure the accuracy of this reference, however, I assume no liability for the results of using information contained herein.

Other Tube Search Engines:
Frank's Electron Tube Pages

Complete Tube Manuals:
Tube Manual Index from NJ7P

A horizontal ribbon.

(c) 1994-2021 by William A. Beech, NJ7P

Tue, 04 Oct 2022 17:02:04 -0700