NJ7P SQL Tube Database Query

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4BC8
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 9AJEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 4KN8
Substitutes ................................... 4BQ7 4BZ7 4BZ8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as a cascode amplifier in vhf television tuners and in push-pull cathode-drive rf amplifiers. Requires miniature 9-contact socket.

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 4.2 V
Heater Current ................................ 0.6 A

Source ........................................ RCA RC-29 - 1975
For other characteristics and typical operation, see 6BC8

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Tue, 31 Jan 2023 10:54:21 -0700