NJ7P SQL Tube Database Query

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14J7
Triode Hexode Converter

EIA Base & Outline

EIA Base: 8BLEIA Bulb: 9-30

Substitute Data

Preferred Substitutes ......................... 14S7
Source ........................................ RCA RC-15 - 1947

Application

Glass lock-in type used as combined triode oscillator and heptode mixer in ac/dc radio receivers. Requires lock-in socket.

Mechanical Data

Bulb .......................................... T-9
Base Type ..................................... Lock-in 8-Pin
EIA Outline ................................... 9-30
EIA Base ...................................... 8BL

Electrical Data

Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.15 A

For other characteristics and typical operation, see 7J7

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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.

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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, 29 Nov 2022 20:48:02 -0700