Data set 01
1969 Brown Boveri
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Maximum DC output current
1.75 A
Rectifier - Half Wave ·Rectifier
DQ4
Directly heated mercury-vapor half-wave rectifier for high-voltage industrial service, using an oxide-coated cathode and mercury-pellet filling for efficient ampere-class conversion.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- -
Description
Mercury-vapour rectifier for high-voltage rectifier service, using an oxide-coated directly heated cathode and mercury pellet filling.
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
- -
- Nominal heater current
- -
- 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 nominal output current
- 1.75 A
Mercury-vapour rectifier ratings from 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.