Data set 01
1959 Ediswan
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Application
Application
DC control
Triode-connected operation
Published
TriodeConnection
Power - Beam (NOT sweep) ·BeamPower
7972
Low-impedance beam tetrode specifically developed for DC control applications, suitable for regulator and power-control circuits requiring substantial current and high-voltage handling.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7A
- Base pins
- 7
- Nominal heater
- 13 V / 2.6 A
Description
Low-impedance beam tetrode for DC control applications with center-tapped heater.
Socket description
Septar 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B7A
- Base pins
- 7
- Nominal heater voltage
- 13 V
- Nominal heater current
- 2.6 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
- Max plate voltage
- 1500 V
- Max screen voltage
- 300 V
- Max plate dissipation
- 90 W
- Max screen dissipation
- 10 W
- Max grid dissipation
- 1 W
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.