Data set 01
1948 Brimar Radio Valve Manual
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Power output at 90 V
0.24 W
Power - Pentode (NOT beam) ·Pentode
1C5GT
Glass tubular directly heated power pentode for low-voltage battery receiver output stages.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- G-6X
- Socket code
- IO
- Base pins
- 7
- Nominal heater
- 1.4 V / 100 mA
Description
Directly heated power-amplifier pentode for low-voltage Class-A output service.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- G-6X
- Socket code
- IO
- Base pins
- 7
- Nominal heater voltage
- 1.4 V
- Nominal heater current
- 100 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
G-6X - 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
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 110000 Ω
- Transconductance
- 0.0015 S
- Max plate voltage
- 110 V
- Max screen voltage
- 110 V
- Max cathode current
- 12 mA
Promoted characteristics use first listed Class A1 condition (83 V plate/screen).
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 02
1958 Brimar Radio Valve No 7
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
Referenced Characteristics
Type 3S4, parallel filament connection
Source explicitly refers to 3S4; values not invented
Data set 03
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Plate voltage
90 V
ClassA
Screen voltage
90 V
ClassA
Control-grid voltage
-7.5 V
ClassA
Plate current
7.5 mA
ClassA
Screen current
1.6 mA
ClassA
Load resistance
8000 Ω
ClassA
Power output
0.24 W
ClassA
Characteristic
Plate resistance
115000 Ω
ClassA
Transconductance
1550 µS
ClassA
Data set 04
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Filament Voltage
1.4 V
Nominal
Filament Current
100 mA
Nominal
MaximumFilamentVoltage
1.6 V
DryBatteryOperation
MaximumFilamentVoltage
1.3 V
ACOrDCPowerLineOperation;DesignCenter
Plate Voltage
83 V
ClassA1;PlateVoltage=83V
Screen Voltage
83 V
ClassA1;PlateVoltage=83V
Control Grid Voltage
-7 V
ClassA1;PlateVoltage=83V
Zero Signal Plate Current
7 mA
ClassA1;PlateVoltage=83V
Maximum Signal Plate Current
7.3 mA
ClassA1;PlateVoltage=83V
Zero Signal Screen Current
1.6 mA
ClassA1;PlateVoltage=83V
Maximum Signal Screen Current
3.5 mA
ClassA1;PlateVoltage=83V
Load Resistance
9000 ohm
ClassA1;PlateVoltage=83V
Total Harmonic Distortion
10 %
ClassA1;PlateVoltage=83V
Power Output
200 mW
ClassA1;PlateVoltage=83V
Plate Voltage
90 V
ClassA1;PlateVoltage=90V
Screen Voltage
90 V
ClassA1;PlateVoltage=90V
Control Grid Voltage
-7.5 V
ClassA1;PlateVoltage=90V
Zero Signal Plate Current
7.5 mA
ClassA1;PlateVoltage=90V
Maximum Signal Plate Current
7.8 mA
ClassA1;PlateVoltage=90V
Zero Signal Screen Current
1.6 mA
ClassA1;PlateVoltage=90V
Maximum Signal Screen Current
3.5 mA
ClassA1;PlateVoltage=90V
Load Resistance
8000 ohm
ClassA1;PlateVoltage=90V
Total Harmonic Distortion
10 %
ClassA1;PlateVoltage=90V
Power Output
240 mW
ClassA1;PlateVoltage=90V
Characteristic
Plate Resistance
110000 ohm
ClassA1;PlateVoltage=83V
Transconductance
1500 uS
ClassA1;PlateVoltage=83V
Plate Resistance
115000 ohm
ClassA1;PlateVoltage=90V
Transconductance
1550 uS
ClassA1;PlateVoltage=90V