Data set 01
1946 Standard Telephone and Cables
Published operating points and test conditions from this source.
SECTION 1
Ballast
Other
Voltage limits
3 to 9.5 V
Current limits
94 mA to 101 mA
Specialized - Ballast ·Ballast
4003A
Ballast lamp designed to maintain approximately constant current through amplifying-valve filaments despite variations in battery supply voltage.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- GOLIATH
- Base pins
- -
- Nominal heater
- -
Description
Ballast lamp intended to maintain approximately constant current to amplifying-valve filaments despite battery-voltage variation.
Socket description
Goliath industrial rectifier base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- GOLIATH
- 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
Ballast
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted where applicable; additional published data retained as parameters.
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.