NJ7P SQL Tube Database Query

A horizontal ribbon.

Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.

A horizontal ribbon.

7A4
Medium-Mu Triode

EIA Base & Outline

EIA Base: 5ACEIA Bulb: 9-30
Source ........................................ RS-15

Application

Source ........................................ RS-15
Glass lock-in type used as detector, amplifier, or oscillator in radio equipment. Requires lock-in socket. Maximum ratings, typical operating conditions, and curves, see metal type 6J5.

Mechanical Data

Source ........................................ RS-15
Bulb .......................................... T-9
Base Type ..................................... Lock-in 8-Pin
EIA Outline ................................... 9-30
EIA Base ...................................... 5AC

Electrical Data

Source ........................................ RS-15
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Source ........................................ RS-15
For other characteristics and typical operation, see 6J5

A horizontal ribbon.

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

A horizontal ribbon.

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

Tue, 04 Oct 2022 19:28:36 -0700