Data set 01
192X Marconi Valve
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Anode voltage
50 to 120 V
Detector service
Voltage - Triode (single) ·Triode
H2
High-magnification directly heated triode for detector and initial low-frequency amplifier service in battery receivers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater
- 2 V / 400 mA
Description
High-magnification valve for earlier receiver stages, especially detector and initial low-frequency amplifier service.
Socket description
European 4-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater voltage
- 2 V
- Nominal heater current
- 400 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
- 35000 Ω
- Transconductance
- 0.001 S
- Amplification factor
- 35
- Max plate voltage
- 150 V
Published characteristics/ratings were promoted when unambiguous; remaining operating values are preserved in TUBE_SECTION_PARAMETER.
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.
Data set 02
1955 Marconi
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Filament Voltage
2 V
Filament Current
400 mA
Amplification Factor
35
Transconductance
1000 uS
Other
Maximum/Published Anode Voltage
150 V
Typical Detector Anode Voltage
50-120 V
Typical LF Amplifier Anode Voltage
100-150 V
Typical Grid Bias
-1.5 V