Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Heater Voltage
6.3 V
Nominal
Heater Current
600 mA
Nominal
Specialized - Cathode Ray ·CathodeRay
5DKP4
Five-inch P4 cathode-ray display tube documented by manufacturer data, using a white short-to-medium-persistence screen with beam focusing and deflection characteristics appropriate to direct visual display.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- OCTALCRT8
- Base pins
- 5
- Nominal heater
- 6.3 V / 600 mA
Description
The Sylvania 5DKP4 is a 5-inch aluminized high-resolution CRT with magnetic focus and deflection, intended for monitor service.
Socket description
Octal 8-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- OCTALCRT8
- Base pins
- 5
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 600 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
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 8800 V
Cathode-ray electron-gun/display section.
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.
Data set 02
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Heater Voltage
6.3 V
Heater Current
600 mA
Nominal; ±10%
Focusing Method
Magnetic text
Deflection Method
Magnetic text
Deflection Angle
53 deg
Approximate
Fluorescence
White text
Persistence
Medium Short text
Screen Aluminized
Yes text
Cathode-to-All Capacitance
5 pF
Approximate
Grid1-to-All Capacitance
8 pF
Approximate
Maximum Undeflected Spot Displacement
9 mm
Maximum Line Width
0.16 mm
Other
Maximum Anode Voltage
8800 V
Maximum Grid2 Voltage
770 V
Maximum Grid1 Negative Bias
180 V
Maximum Grid1 Positive Peak
2 V
Maximum Heater-Cathode Voltage
180 V
EitherPolarity
Anode Voltage
8000 V
Grid2 Voltage
250 V
Grid1 Cutoff Voltage Minimum
-75 V
Grid1 Cutoff Voltage Maximum
-30 V
Focusing Coil Current
136 mA
Nominal; ±15%
Maximum Grid1 Circuit Resistance
1.5 Mohm