Data set 01
1937 Standard Valves
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Maximum peak anode current
350 mA
Maximum continuous anode dissipation
300 W
Characteristic
Total emission
400 mA
Rectifier - Half Wave ·Rectifier
4059A
Directly heated radiation-cooled thermionic half-wave rectifier for high-voltage supplies. Rated for approximately 25 kV peak inverse voltage for industrial and other demanding electronic rectification applications.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 12.5 V / 6 A
Description
4059A is a half-wave radiation-cooled thermionic rectifier. The Standard Valves sheet publishes construction, electrical constants, limiting conditions, and applicable operating data.
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
- 12.5 V
- Nominal heater current
- 6 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
- Max plate dissipation
- 300 W
- Rectifier peak inverse voltage
- 25000 V
Published ratings and characteristics promoted 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.