NJ7P SQL Tube Database Query

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1AJ5
Diode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 1AG5EIA Bulb: 2-1

Substitute Data

Substitutes ................................... 1AK5

Mechanical Data

Bulb .......................................... T-2x3
EIA Outline ................................... 2-1
EIA Base ...................................... 1AG5

Electrical Data

Heater Voltage ................................ 1.25 DC V
Heater Current ................................ 0.04 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 1.7 pf
Output ........................................ 2.4 pf
Grid to Plate ................................. 0.1 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 45 V
Grid No. 2 Voltage ............................ 45 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 300K Ω
Transconductance .............................. 425 µMho
Plate Current ................................. 1 mA
Grid No. 2 Current ............................ 0.3 mA

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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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Frank's Electron Tube Pages

Complete Tube Manuals:
Tube Manual Index from NJ7P

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(c) 1994-2021 by William A. Beech, NJ7P

Fri, 09 Dec 2022 05:57:21 -0700