Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Pentode
Capacitance
Anode-earth capacitance
1 pF
Grid-earth capacitance
7.5 pF
Anode-grid capacitance
0.006 pF
Voltage Pentode or Tetrode (under 100V) ·Pentode
SP141
High-frequency receiving pentode designed for RF and intermediate-frequency amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater
- 1.4 V / 50 mA
Description
Battery high-frequency pentode designed for satisfactory operation from a 1.5 V dry cell without additional filament resistance.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 8
- Nominal heater voltage
- 1.4 V
- Nominal heater current
- 50 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
Pentode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0009 S
- Max plate voltage
- 90 V
- Max screen voltage
- 90 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.