NJ7P SQL Tube Database Query

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4BL8
Medium-Mu Triode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 9AEEIA Bulb: 6-2

Substitute Data

Substitutes ................................... 5CQ8 5EA8 5GH8 5U8
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used in frequency-shanger service in color and black-and-white television receivers. Requires miniature 9-contact socket.

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 4.6 V
Heater Current ................................ 0.6 A

Source ........................................ RCA RC-29 - 1975
For other characteristics and typical operation, see 6BL8

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Fri, 19 Aug 2022 08:14:28 -0700