NJ7P SQL Tube Database Query

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951
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 4M

Substitute Data

Preferred Substitutes ......................... 1B4
Source ........................................ ARRL HB -1947

Application

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

Mechanical Data

EIA Base ...................................... 4M

Electrical Data

Heater Voltage ................................ 2 V
Heater Current ................................ 0.06 A

For other characteristics and typical operation, see 1E5GP

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Sat, 25 Mar 2023 03:24:49 -0700