NJ7P SQL Tube Database Query

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A horizontal ribbon.

4BS8
Medium-Mu Twin Triode (Low Noise)

EIA Base & Outline

EIA Base: 9AJEIA Bulb: 6-2

Substitute Data

Preferred Substitutes ......................... 4BC8 4BQ7 4BX8
Substitutes ................................... 4BX8 4KN8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
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 ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 4.5 V
Heater Current ................................ 0.6 A

Source ........................................ RCA RC-29 - 1975
For other characteristics and typical operation, see 6BS8

A horizontal ribbon.

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Mon, 30 Jan 2023 02:11:18 -0700