Data set 01
1933 Western Electric Tubes
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristic
Anode-cathode conducting drop
15 V
Published datasheet value
Rectifier - Half Wave ·Rectifier
280A
Directly heated half-wave thermionic mercury-vapor rectifier for power supplies. Rated for approximately 3.5 kV peak inverse voltage and 500 mA peak current with a characteristic arc drop around 15 V.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- MEDIUM4BAYONET
- Base pins
- 4
- Nominal heater
- 2.5 V / 3 A
Description
Half-wave thermionic mercury-vapor rectifier.
Socket description
Medium 4-contact bayonet base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- MEDIUM4BAYONET
- Base pins
- 4
- Nominal heater voltage
- 2.5 V
- Nominal heater current
- 3 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 1
Rectifier
X-ray radiationInterelectrode capacitances
- Rectifier peak inverse voltage
- 3500 V
- Rectifier peak forward current
- 500 mA
- Rectifier forward voltage drop
- 15 V
- Rectifier warm-up time
- 300 s
Published ratings and characteristics promoted from the approved datasheet.
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
2026 Western Electric 200s
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
MaximumOperatingAmbientTemperature
10 to 50 C
RecommendedOperatingAmbientTemperature
15 to 40 C
WarmupTimeAt15C
300 s
WarmupTimeAt10C
720 s