NJ7P SQL Tube Database Query

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254B
Power Tetrode

EIA Base & Outline

EIA Base: T4C

Mechanical Data

EIA Base ...................................... T4C

Electrical Data

Heater Voltage ................................ 7.5 V
Heater Current ................................ 3.25 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 11.2 pf
Output ........................................ 5.4 pf
Grid to Plate ................................. 0.085 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 750 V
Grid No. 2 Voltage ............................ 150 V
Plate Dissipation ............................. 25 W
Grid No. 2 Dissipation ........................ 5 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 750 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -135 V
Plate Current ................................. 75 mA
Power Output (approx) ......................... 30 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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Sat, 26 Nov 2022 02:56:18 -0700