1H4GT

GT-envelope directly heated medium-mu power triode for Class A and push-pull Class B audio-output service in battery-operated equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Description

Directly heated medium-mu triode for Class A and push-pull Class B power-amplifier service.

General specifications

Properties common to every published source and operating point.

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1IS	A	IS — Internal Screen EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5S
PIN2F	—	F — Filament EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5S
PIN3P	A	P — Plate (Anode) EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5S
PIN5G1	A	G1 — Control Grid EIA chart transcription; manufacturer corroboration pending; preserve source designation G1	Unverified EIA Base Connections, printed page 127, 5S
PIN7F	—	F — Filament EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5S

1 physical section, each with unique specifications.

Section 1

X-ray radiationInterelectrode capacitances

Medium-mu triode section.

Source-dependent data

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

Published operating points and test conditions from this source.

SECTION 1

Data set 02

Published operating points and test conditions from this source.

SECTION 1