Data set 01
1960 Mazda
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Anode-grid capacitance
5.25 pF
Voltage - Triode (single) ·Triode
HL41
Indirectly heated triode for receiver amplifier and detector service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- IO
- Base pins
- -
- Nominal heater
- 4 V / 650 mA
Description
Indirectly heated triode for receiver amplifier/detector service.
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
- -
- Nominal heater voltage
- 4 V
- Nominal heater current
- 650 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
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 12000 Ω
- Transconductance
- 0.0025 S
- Amplification factor
- 30
- Max plate voltage
- 250 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.