Data set 01
1937 Standard Valves
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Maximum peak anode current
10 mA
Rectifier - Half Wave ·Rectifier
4075A
Directly heated half-wave high-vacuum rectifier, formerly coded VLS.61, for specialized high-voltage service. Rated for approximately 15 kV peak inverse voltage for low-current high-voltage electronic supplies.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater
- 2 V / 1.2 A
Description
4075A is a half-wave high-vacuum rectifier; previously coded VLS.61. The Standard Valves sheet publishes construction, electrical constants, limiting conditions, and applicable operating data.
Socket description
European 4-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater voltage
- 2 V
- Nominal heater current
- 1.2 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
- 15000 V
- Rectifier nominal output current
- 3 mA
- Rectifier peak forward current
- 10 mA
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.