NJ7P SQL Tube Database Query

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1A7G
Pentagrid Converter

EIA Base & Outline

EIA Base: 7ZEIA Bulb: 9-28

Substitute Data

Substitutes ................................... 1B7 1C7 1D7
Source ........................................ ARRL HB - 1947

Application

Source ........................................ ARRL HB - 1947
Glass octal type used in superhetrodyne circuits having battery power supplies. Requires octal socket and may be mounted in any position.

Mechanical Data

Source ........................................ ARRL HB - 1947
Bulb .......................................... T-9
Base Type ..................................... Octal
EIA Outline ................................... 9-28
EIA Base ...................................... 7Z

Electrical Data

Source ........................................ ARRL HB - 1947
Filament Voltage .............................. 1.4 DC V
Filament Current .............................. 0.05 A

Source ........................................ ARRL HB - 1947
For other characteristics and typical operation, see 1A7GT

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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

Thu, 29 Sep 2022 23:39:36 -0700