NJ7P SQL Tube Database Query

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4BZ7
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 9AJEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 4BC8 4BQ7
Substitutes ................................... 4BZ8 4KN8
Source ........................................ TungSol

Application

Source ........................................ TungSol
Miniature type used as a cascode amplifier in vhf color and black-and-white television tuners and in push-pull cathode-drive rf amplifiers. Requires miniature 9-contact socket.

Electrical Data

Source ........................................ TungSol
Heater Voltage ................................ 4.2 V
Heater Current ................................ 0.6 A

Source ........................................ TungSol
For other characteristics and typical operation, see 6BZ7

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Fri, 30 Sep 2022 06:00:17 -0700