Data set 01
1959 Rogers
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristic
HeaterOrFilamentVoltage
38 V
HeaterOrFilamentCurrent
100 mA
Rectifier - Half Wave ·Rectifier
38A3
Half-wave high-vacuum rectifier for equipment using series-connected heaters. Its 38 V heater and useful current capability suit transformerless electronic power supplies.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B9A
- Base pins
- -
- Nominal heater
- 38 V / 100 mA
Description
Half-wave high-vacuum rectifier for series-heater equipment.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- -
- Nominal heater voltage
- 38 V
- Nominal heater current
- 100 mA
- 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
- 700 V
- Rectifier nominal output current
- 110 mA
- Rectifier peak forward current
- 660 mA
- Rectifier max heater-cathode voltage
- 550 V
Published ratings and characteristics promoted from the supplied Rogers/Rogers Majestic source.
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.