Data set 01
1962 Eimac
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Peak Plate Current
- to 6 A
SwitchTube
Power - Beam (NOT sweep) (over 1000V 100W) ·BeamPower
4PR250C
High-voltage pulse tetrode designed for pulse-modulator and amplifier service, combining large peak-current capability with high plate-voltage operation.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 5 V / 14 A
Description
The EIMAC 8248/4PR250C is a thoriated-tungsten radial-beam pulse tetrode for pulse-modulator, switch-tube, pulsed-amplifier and pulsed-oscillator service at voltages to 50 kV.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 5 V
- Nominal heater current
- 14 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
- 50000 V
- Max screen voltage
- 2000 V
- Max plate dissipation
- 250 W
- Max screen dissipation
- 25 W
- Max grid dissipation
- 5 W
- Max cathode current
- 5.5 A
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.