NJ7P SQL Tube Database Query

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4HT6
Semiremote-Cutoff Pentode

EIA Base & Outline

EIA Base: 9PMEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 4HM6
Substitutes ................................... 4EH7 4EJ7

Electrical Data

Heater Voltage ................................ 4.5 V
Heater Current ................................ 0.45 A

For other characteristics and typical operation, see 6HT6

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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.

Other Tube Search Engines:
Frank's Electron Tube Pages

Complete Tube Manuals:
Tube Manual Index from NJ7P

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Mon, 30 Jan 2023 01:10:33 -0700