1H6GT

GT-envelope directly heated double-diode triode for detector, AVC, and audio voltage amplification in battery receivers. Two diodes provide signal and control rectification while the triode supplies subsequent gain.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 3
Base: 7AA
Socket code: -
Base pins: 7
Nominal heater: 2 V / 60 mA

Description

1H6GT is listed as a duplex-diode medium-mu triode in the supplied receiving-tube handbook. It uses a 2.0 V, 0.06 A directly heated filament. The handbook publishes maximum ratings and representative operating characteristics for its intended service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7AA
Socket code: -
Base pins: 7
Nominal heater voltage: 2 V
Nominal heater current: 60 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7AA - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published handbook maximum ratings and representative operating characteristics reviewed.

Section 2

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published handbook maximum ratings and representative operating characteristics reviewed.

Section 3

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 35000 Ω
Transconductance: 0.000575 S
Amplification factor: 20
Max plate voltage: 135 V

Published handbook maximum ratings and representative operating characteristics reviewed.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 3

Triode

Other

Plate Voltage
135 V
Triode; ClassA

Characteristic

Plate Current
0.8 mA
Triode; ClassA

Capacitance

Grid-to-Plate Capacitance
3.5 pF
Triode

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 3

Triode

Other

Maximum plate voltage
135 V
Published handbook rating
Plate voltage
135 V
ClassA
Control-grid voltage
3 V
ClassA
Plate current
0.8 mA
ClassA

Characteristic

Plate resistance
35000 ohm
Published handbook characteristic
Transconductance
575 µS
Published handbook characteristic
Amplification factor
20
Published handbook characteristic
Filament voltage
2 V
DirectlyHeated DC filament
Filament current
60 mA
DirectlyHeated DC filament