NJ7P SQL Tube Database Query

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A horizontal ribbon.

RK64
Power Tetrode

EIA Base & Outline

EIA Base: 5AW

Mechanical Data

EIA Base ...................................... 5AW

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.5 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 10 pf
Output ........................................ 9 pf
Grid to Plate ................................. 0.4 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 400 V
Grid No. 2 Voltage ............................ 100 V
Plate Dissipation ............................. 6 W
Grid No. 2 Dissipation ........................ 3 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 400 V
Grid No. 3 Voltage ............................ 30 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 3 mA
Plate Current ................................. 35 mA
Grid No. 2 Current ............................ 10 mA
Driving Power ................................. 0.18 W
Power Output (approx) ......................... 10 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 300 V
Grid No. 3 Voltage ............................ 30 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 4 mA
Plate Current ................................. 26 mA
Grid No. 2 Current ............................ 8 mA
Driving Power ................................. 0.2 W
Power Output (approx) ......................... 6 W

A horizontal ribbon.

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A horizontal ribbon.

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Sat, 02 Jul 2022 06:37:24 -0700