NJ7P SQL Tube Database Query

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A22
Screen Grid R.F. Amplifierlifie

EIA Base & Outline

EIA Base: 4Q

Mechanical Data

EIA Base ...................................... 4Q

Electrical Data

Heater Voltage ................................ 15 V
Heater Current ................................ 0.35 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 45 V
Grid No. 1 Voltage ............................ -1.5 V
Plate Current ................................. 2 mA

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If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

Please enter the tube number:

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.

Other Tube Search Engines:
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

Mon, 06 Feb 2023 18:19:15 -0700