Data set 01
1962 Mullard Industrial Rectifiers
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristic
Average Cathode Current Used on Heating Curve
400 mA
HeatingCoolingCurve
Rectifier - Half Wave ·Rectifier
RG3250A
Directly heated RG3-250A half-wave rectifier for high-voltage conversion. Its heavy filament provides multiampere output at multi-kilovolt voltage.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4B
- Base pins
- 4
- Nominal heater
- 2.5 V / 5 A
Description
Half-wave rectifier RG3-250A; the approved sheet contains mechanical data and a heating/cooling characteristic rather than the full electrical ratings table. Documented sparse-source exception: this approved PDF does not reproduce the ordinary ratings/characteristics tables; no external values imported.
Socket description
Medium 4-pin bayonet
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4B
- Base pins
- 4
- Nominal heater voltage
- 2.5 V
- Nominal heater current
- 5 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
- 10000 V
- Rectifier nominal output current
- 3 A
- Rectifier peak forward current
- 3 A
Gas-discharge device.
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
1971 Mullard Gas Filled Tubes
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Maximum peak inverse anode voltage
10 kV
Maximum average cathode current
3 A
Maximum peak cathode current
1 A
Maximum surge cathode current
1 A
Fault protection
Heater/filament voltage
2.5 V
Heater/filament current
5 A