Data set 01
1937 Standard Valves
Published operating points and test conditions from this source.
SECTION 1
Diode
Other
Maximum direct current
1 mA
Maximum inverse peak voltage
20000 V
Diode (NOT rectifier) ·Diode
4065A
High-voltage diode designed specifically for electrostatic voltmeter service, with published construction and operating limits for measurement applications.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- SPECIAL4LOWLOSS
- Base pins
- 4
- Nominal heater
- 2.5 V / 8 A
Description
4065A is a high-voltage diode for electrostatic voltmeter service. The Standard Valves sheet publishes construction, electrical constants, limiting conditions, and applicable operating data.
Socket description
Special 4-contact low-loss base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- SPECIAL4LOWLOSS
- Base pins
- 4
- Nominal heater voltage
- 2.5 V
- Nominal heater current
- 8 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
Diode
X-ray radiationInterelectrode capacitances
- Rectifier peak inverse voltage
- 20000 V
- Rectifier nominal output current
- 1 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.