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A horizontal ribbon.

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A horizontal ribbon.

51S
Super Control R.F. Amplifier

EIA Base & Outline

EIA Base: 5E

Substitute Data

Preferred Substitutes ......................... 35
Source ........................................ ARRL HB -1947

Application

Glass type used as rf or if amplifier in ac-=operated receivers. Requires five-contact socket. Has external shield connected to cathode.

Mechanical Data

Bulb .......................................... ST-14
EIA Base ...................................... 5E

Electrical Data

Heater Voltage ................................ 2.5 V
Heater Current ................................ 1.75 A

For other characteristics and typical operation, see 51

A horizontal ribbon.

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A horizontal ribbon.

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Mon, 27 Jun 2022 10:39:31 -0700