Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 0
Triode
Other
Typical Plate Voltage
250 V
Typical Plate Current
50 mA
Power Output
2.75 W
PushPullPowerOutput
9 W
PushPull
Power - Triode ·Triode
PP3250
Directly heated Mazda output triode for AC receiver audio stages. Published operation provides several watts single-ended or substantially more in push-pull, making it a versatile medium-power receiver output tube.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4 V / 1 A
Description
Directly heated output power triode for AC receiver output stages, also usable with DC filament heating.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 4 V
- Nominal heater current
- 1 A
- 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 0
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 1000 Ω
- Transconductance
- 0.0065 S
- Amplification factor
- 6.5
- Max plate voltage
- 300 V
- Max plate dissipation
- 15 W
- Max cathode current
- 50 mA
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.