NJ7P SQL Tube Database Query

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4BQ7
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 9AJEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 4BC8 4BZ7 4BZ8
Substitutes ................................... 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 6BQ7

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Sat, 25 Jun 2022 15:14:50 -0700