Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
Plate Current
1.6 mA
Plate Resistance
1.1 Mohm
Amplification Factor
880
Voltage Pentode - Sharp Cutoff (single) ·Pentode
1LN5
Directly heated sharp-cutoff RF pentode for low-voltage battery receivers, providing high voltage gain with economical filament consumption.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 7AO
- Socket code
- B8G
- Base pins
- 8
- Nominal heater
- 1.4 V / 50 mA
Description
Sharp-cutoff RF pentode for low-voltage battery-operated receivers. Electrical ratings and representative operating data were extracted from the approved manual page.
Socket description
Loctal 8-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 7AO
- Socket code
- B8G
- Base pins
- 8
- Nominal heater voltage
- 1.4 V
- Nominal heater current
- 50 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
7AO - 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
- 1100000 Ω
- Transconductance
- 0.0008 S
- Amplification factor
- 880
- Max plate voltage
- 110 V
- Max screen voltage
- 110 V
Sharp-cutoff RF pentode for low-voltage battery-operated receivers.
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
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristics
Input capacitance
3 pF
Output capacitance
8 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
1.6 mA
ClassA; OperatingPoint1
Screen current
0.35 mA
ClassA; OperatingPoint1