Alternatives & variations Download PDF datasheet

1J6G

Directly heated twin triode intended for Class-B push-pull audio power amplification in battery receivers, with both triode units cooperating as the output stage.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 7AB
Socket code: IO
Base pins: 8
Nominal heater: 2 V / 240 mA

Description

1J6G is listed as a twin-triode power amplifier in the supplied receiving-tube handbook. It uses a 2.0 V, 0.24 A directly heated filament. The handbook publishes maximum ratings and representative operating characteristics for its intended service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7AB
Socket code: IO
Base pins: 8
Nominal heater voltage: 2 V
Nominal heater current: 240 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7AB - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Max plate voltage: 135 V
Max cathode current: 50 mA

Representative row for two identical triodes. Reference/equivalence-style source states ratings/characteristics identical with type 19 except filament current and capacitances; external values not imported.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Max plate voltage: 135 V
Max cathode current: 50 mA

Identical second physical section; duplicated from representative section per physical-section-row policy.

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

1937 Raytheon Radio Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum Plate Voltage
135 V
Published ratings
Liaximum Peak Plate Current (per plate
50 mA
Published ratings
Plate Voltage
135 V
ClassB; Column1
Plate Voltage
135 V
ClassB; Column2
Plate Voltage
135 V
ClassB; Column3
No-Signal Plate Current (per plate
0.5 mA
ClassB; Column1
No-Signal Plate Current (per plate
2 mA
ClassB; Column2
No-Signal Plate Current (per plate
5 mA
ClassB; Column3
Load Resistance (platc to plate
10000 ohm
ClassB; Column1
Load Resistance (platc to plate
10000 ohm
ClassB; Column2
Load Resistance (platc to plate
10000 ohm
ClassB; Column3
Power Output {approximate
1.6 W
ClassB; Column1
Power Output {approximate
1.9 W
ClassB; Column2
Power Output {approximate
2 W
ClassB; Column3
Average Power Input (grid to grid
0.095 W
ClassB; Column1
Average Power Input (grid to grid
0.13 W
ClassB; Column2
Average Power Input (grid to grid
0.17 W
ClassB; Column3

Data set 02

1946 Amalgamated Wireless

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater or filament voltage
2 V
Published nominal rating

Data set 03

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum plate voltage
135 V
Published handbook rating
Plate voltage
135 V
ClassB PushPull TwoTubes
Control-grid voltage
0 V
ClassA
Plate current
5 mA
ClassA
Load resistance
10000 ohm
ClassB PushPull TwoTubes
Power output
2.1 W
ClassB PushPull TwoTubes

Characteristic

Filament voltage
2 V
DirectlyHeated DC filament
Filament current
240 mA
DirectlyHeated DC filament