NJ7P SQL Tube Database Query

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861
Power Tetrode

EIA Base & Outline

EIA Base: T1B

Mechanical Data

EIA Base ...................................... T1B

Electrical Data

Heater Voltage ................................ 11 V
Heater Current ................................ 10 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 14.5 pf
Output ........................................ 10.5 pf
Grid to Plate ................................. 0.1 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 3500 V
Grid No. 2 Voltage ............................ 750 V
Plate Dissipation ............................. 400 W
Grid No. 2 Dissipation ........................ 35 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 3500 V
Grid No. 2 Voltage ............................ 500 V
Grid No. 1 Voltage ............................ -250 V
Grid No. 1 Current ............................ 40 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 40 mA
Driving Power ................................. 30 W
Power Output (approx) ......................... 700 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 3000 V
Grid No. 2 Voltage ............................ 375 V
Grid No. 1 Voltage ............................ -200 V
Grid No. 1 Current ............................ 55 mA
Plate Current ................................. 200 mA
Driving Power ................................. 35 W
Power Output (approx) ......................... 400 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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Tue, 09 Aug 2022 08:03:28 -0700