NJ7P SQL Tube Database Query

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860
Power Tetrode

EIA Base & Outline

EIA Base: T4CB

Mechanical Data

EIA Base ...................................... T4CB

Electrical Data

Heater Voltage ................................ 10 V
Heater Current ................................ 3.25 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 7.75 pf
Output ........................................ 7.5 pf
Grid to Plate ................................. 0.08 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 3000 V
Grid No. 2 Voltage ............................ 500 V
Plate Dissipation ............................. 100 W
Grid No. 2 Dissipation ........................ 10 W

Characteristics and Typical Operation

Class C Oscillator/Amplifier
Plate Voltage ................................. 3000 V
Grid No. 2 Voltage ............................ 300 V
Grid No. 1 Voltage ............................ -150 V
Grid No. 1 Current ............................ 15 mA
Plate Current ................................. 85 mA
Grid No. 2 Current ............................ 25 mA
Driving Power ................................. 7.0 W
Power Output (approx) ......................... 165 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 220 V
Grid No. 1 Voltage ............................ -200 V
Grid No. 1 Current ............................ 38 mA
Plate Current ................................. 85 mA
Grid No. 2 Current ............................ 25 mA
Driving Power ................................. 17 W
Power Output (approx) ......................... 105 W

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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.

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Mon, 15 Aug 2022 18:22:03 -0700