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X99
Triode Detector Amplifier

EIA Base & Outline

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

Application

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

Mechanical Data

EIA Base ...................................... 4F

Electrical Data

Heater Voltage ................................ 3.3 V
Heater Current ................................ 0.06 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -4.5 V
Amplification Factor .......................... 6.6
Transconductance .............................. 425 µMho
Plate Current ................................. 2.5 mA

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Sat, 02 Jul 2022 07:11:00 -0700