Data set 01
1948 Brimar Radio Valve Manual
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
HeaterOrFilamentVoltage
1.4 V
HeaterOrFilamentCurrent
50 mA
Voltage Pentode - Sharp Cutoff (single) ·Pentode
1N5G
Directly heated sharp-cutoff pentode for RF and IF amplification in battery-operated receivers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 5Y
- Socket code
- IO
- Base pins
- 7
- Nominal heater
- 1.4 V / 50 mA
Description
Sharp-cutoff RF pentode for battery receiver RF and IF service. Electrical ratings and representative operating data were extracted from the approved manual page.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 5Y
- Socket code
- IO
- Base pins
- 7
- Nominal heater voltage
- 1.4 V
- Nominal heater current
- 50 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
5Y - 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
- 1500000 Ω
- Transconductance
- 0.00075 S
- Max plate voltage
- 110 V
- Max screen voltage
- 110 V
- Max cathode current
- 6.5 mA
Sharp-cutoff RF pentode for battery receiver RF and IF service.
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
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Plate Voltage
90 V
Screen Voltage
90 V
Plate Current
1.2 mA
Screen Current
0.3 mA
Characteristic
Plate Resistance
1.5 Mohm
Transconductance
750 µS
Grid 0 V
Transconductance
50 µS
Grid -3.2 V
Transconductance
5 µS
Grid -4 V
Data set 03
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristics
Input capacitance
3 pF
Output capacitance
10 pF
Grid-to-plate capacitance
0.007 pF
Other
Plate voltage
90 V
ClassA; OperatingPoint1
Screen voltage
90 V
ClassA; OperatingPoint1
Control-grid bias
0 V
ClassA; OperatingPoint1
Plate current
1.2 mA
ClassA; OperatingPoint1
Screen current
0.3 mA
ClassA; OperatingPoint1