Data set 01
1959 Ediswan
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Application
Application
Series / shunt control valve
Triode-connected operation
Published
TriodeConnection
Power - Beam (NOT sweep) ·BeamPower
7971
Special-quality beam tetrode designed for series or shunt control in stabilized power supplies, offering high transconductance and substantial dissipation as an active regulator element.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 1.6 A
Description
Special-quality beam tetrode for series or shunt control in stabilized power supplies.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 1.6 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
Beam Power
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0135 S
- Amplification factor
- 5.5
- Max plate voltage
- 800 V
- Max screen voltage
- 300 V
- Max plate dissipation
- 28 W
- Max screen dissipation
- 5 W
- Max cathode current
- 300 mA
Published source ratings and characteristics promoted where applicable; additional 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.