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6W4GTA

Single heater-cathode diode designed for damping service in television horizontal-deflection circuits, an improved replacement for the 6W4GT.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 4CG
Socket code: -
Base pins: 5
Nominal heater: 6.3 V / 1.2 A

Description

The 6W4-GTA is a single heater-cathode diode for damping-diode service in television horizontal-deflection circuits and is unilaterally interchangeable with the 6W4-GT.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 4CG
Socket code: -
Base pins: 5
Nominal heater voltage: 6.3 V
Nominal heater current: 1.2 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

4CG - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1IC	—	IC EIA chart transcription; independent manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 4CG
PIN2IC	—	IC EIA chart transcription; independent manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 4CG
PIN3K	A	K — Cathode EIA chart transcription; independent manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 4CG
PIN5P	A	P — Plate (Anode) EIA chart transcription; independent manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 4CG
PIN7H	—	H — Heater EIA chart transcription; independent manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 4CG
PIN8H	—	H — Heater EIA chart transcription; independent manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 4CG

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Max plate dissipation: 4 W
Rectifier peak inverse voltage: 3950 V
Rectifier nominal output current: 140 mA
Rectifier peak forward current: 840 mA
Rectifier forward voltage drop: 21 V

Damper-service design-maximum ratings and average voltage drop promoted.

Source-dependent data

Operating conditions by source

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

Data set 01

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

Cathode to Plate and Heater Capacitance
8 pF
Plate to Cathode and Heater Capacitance
6 pF
Heater to Cathode Capacitance
3 pF