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6C5G

Glass-envelope general-purpose triode for amplifier and detector service in radio receiving equipment, combining voltage amplification with detector capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

General-purpose triode amplifier/detector.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 10000 Ω
Transconductance: 0.002 S
Amplification factor: 20
Max plate voltage: 250 V
Max plate dissipation: 2.5 W

Electrical section reconstructed from published ratings/characteristics; transconductance promoted in A/V.

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
250 V
Published table
//
39 V
ClassA; Column1
//
4415 V
ClassA; Column2
//
250 V
ClassA; Column3
Plate Resistance
10000 ohm
ClassA
acml.Mss Transconductance
2000 uS
ClassA
Plate Supply Voltage
250 V
ClassA
Grid Bias (approximate)
-5 V
ClassA
Plate Resistor
50000 ohm
ClassA; Column1
Plate Resistor
10000 ohm
ClassA; Column2
Plate Current
1 mA
ClassA
vVoltage Output (
5 V
ClassA; Column1
vVoltage Output (
42 V
ClassA; Column2
Plate Voltage
250 V
ClassA
Plate Current Adjusted to
0.2 mA
ClassA
Plate Voltage
45 V
ClassA; Column1
Plate Voltage
100 V
ClassA; Column2
Grid Leak Resistance
0.1 ohm
ClassA; Column1
Grid Leak Resistance
1 ohm
ClassA; Column2

Data set 02

1948 Brimar Radio Valve Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Anode Voltage
250 V
Anode Current
8 mA
Control Grid Voltage
-8 V

Data set 03

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater Voltage
6.3 V
Heater Current
300 mA

Other

Plate Voltage
250 V
Plate Current
8 mA
Control Grid Voltage
-8 V