Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Typical Plate Voltage
120 V
Typical Screen Voltage
120 V
Typical Plate Current
5 mA
Power Output
0.4 W
Power - Pentode (NOT beam) ·Pentode
PEN25
Power/output pentode designed for audio-frequency output amplification in receiver or push-pull amplifier service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 2 V / 150 mA
Description
High-sensitivity battery-economy output pentode for portable receivers.
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
- 2 V
- Nominal heater current
- 150 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
- 0.0045 S
- Max plate voltage
- 150 V
- Max screen voltage
- 150 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.