6Q6G

Beam-power output tube intended for power-amplifier service, providing a conventional receiver audio-output stage.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 7
Socket code: IO
Base pins: 7
Nominal heater: 6.3 V / 150 mA

Description

Beam power output tube intended for power-amplifier service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7
Socket code: IO
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 150 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7 - 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

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 62000 Ω
Transconductance: 0.00105 S
Amplification factor: 65
Max plate voltage: 250 V

Promoted from clearly identified printed ratings/characteristics; additional operating points and capacitances retained in TUBE_SECTION_PARAMETER.

Section 2

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Promoted from clearly identified printed ratings/characteristics; additional operating points and capacitances retained in TUBE_SECTION_PARAMETER. The source identifies two independent detector diodes but does not publish separate diode electrical ratings.

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

Pentode

Capacitance

Grid-to-plate capacitance
1.3 pF
Section1
Input capacitance
2.7 pF
Section1
Output capacitance
4.5 pF
Section1

Other

Plate voltage
135 V
ClassA
Grid bias
-1.5 V
ClassA
Plate current
0.9 mA
ClassA
Plate voltage
250 V
ClassA
Grid bias
-3 V
ClassA
Plate current
1.2 mA
ClassA

Characteristic

Plate resistance
65000 Ω
135VPlate
Transconductance
1000 µS
135VPlate
Amplification factor
65
Section1
Plate resistance
62000 Ω
250VPlate
Transconductance
1050 µS
250VPlate