NJ7P SQL Tube Database Query

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A horizontal ribbon.

RK65
Power Tetrode

EIA Base & Outline

EIA Base: T3BC

Mechanical Data

EIA Base ...................................... T3BC

Electrical Data

Heater Voltage ................................ 5.0 V
Heater Current ................................ 14 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 10.5 pf
Output ........................................ 4.75 pf
Grid to Plate ................................. 0.24 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 3000 V
Grid No. 2 Voltage ............................ 500 V
Plate Dissipation ............................. 215 W
Grid No. 2 Dissipation ........................ 35 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 3000 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ -100 V
Grid No. 1 Current ............................ 24 mA
Plate Current ................................. 240 mA
Grid No. 2 Current ............................ 70 mA
Driving Power ................................. 6.0 W
Power Output (approx) ......................... 510 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 2500 V
Grid No. 1 Voltage ............................ -150 V
Grid No. 1 Current ............................ 22 mA
Plate Current ................................. 200 mA
Grid No. 2 Current ............................ 70 mA
Driving Power ................................. 6.3 W
Power Output (approx) ......................... 380 W

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A horizontal ribbon.

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Thu, 18 Aug 2022 15:04:41 -0700