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V99
Detector Amplifier Triode

EIA Base & Outline

EIA Base: 4D
Source ........................................ RCA RC-15 - 1947

Application

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

Mechanical Data

EIA Base ...................................... 4D

Electrical Data

Filament Voltage .............................. 3.3 V
Filament Current .............................. 0.083 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -4.5 V
Plate Current ................................. 2.5 mA

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Thu, 02 Feb 2023 04:17:13 -0700