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6Q5G

Gas-filled triode designed primarily as a sweep oscillator and also usable in control or counter circuits, generating repetitive time-base waveforms through gas-discharge action.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: 6Q
Socket code: -
Base pins: 8
Nominal heater: 6.3 V / 600 mA

Description

The Du Mont 6Q5G is a gas-filled triode used as a sweep oscillator and in control or counter circuits.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 6Q
Socket code: -
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 600 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

6Q - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1SH	A	SH — Internal Shield EIA chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 127, 6Q
PIN2H	—	H — Heater EIA chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 127, 6Q
PIN3P	A	P — Plate (Anode) EIA chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 127, 6Q
PIN5G1	A	G1 — Control Grid EIA chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 127, 6Q
PIN7H	—	H — Heater EIA chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 127, 6Q
PIN8K	A	K — Cathode EIA chart transcription; independent manufacturer verification pending	Unverified EIA Base Connections, printed page 127, 6Q

Section ratings

1 physical section, each with unique specifications.

Section 1

Thyratron

X-ray radiationInterelectrode capacitances

Max plate voltage: 300 V

Gas-discharge sweep-oscillator/control section.

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

1960 Du Mont

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristics

Tube Voltage Drop
19 V
Approximate
Minimum Sweep Frequency
1 Hz
Maximum Sweep Frequency
50000 Hz
Grid-to-Anode Capacitance
2.8 pF
Nominal
Grid-to-Cathode Capacitance
1.7 pF
Nominal
Anode-to-Cathode Capacitance
2 pF
Nominal

Other

Maximum Instantaneous Anode Voltage
300 V
SweepOscillator
Maximum Peak Anode Current
300 mA
SweepOscillator
Maximum Average Anode Current
1 mA
SweepOscillator