Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Typical Plate Voltage
200 V
Typical Screen Voltage
200 V
Power - Pentode (NOT beam) ·Diode-Diode-Pentode
PENDD4020
Combination double-diode output pentode integrating detector or AVC diode functions with an audio power-output pentode.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 3
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 40 V / 200 mA
Description
AC/DC mains double-diode output pentode combining detector, AVC and output functions.
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
- 40 V
- Nominal heater current
- 200 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
3 physical sections, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0079 S
- Max plate voltage
- 250 V
- Max screen voltage
- 250 V
- Max plate dissipation
- 10 W
Section 2
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Section 3
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
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.