NJ7P SQL Tube Database Query

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232
Sharp-Cutoff Tetrode

EIA Base & Outline

EIA Base: 4KEIA Bulb: 14-2

Substitute Data

Preferred Substitutes ......................... 1A4 34
Substitutes ................................... 1B4
Source ........................................ RCA R-10 - 1932

Application

Glass type used as rf amplifier or biased detector in battery-operated receivers. Requires four-contact socket.

For other characteristics and typical operation, see 32

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Tue, 24 May 2022 02:21:00 -0700