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
5DLP4
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
- NEOEIGHTAR7
- Base pins
- -
- Nominal heater
- 6.3 V / 600 mA
Description
The Sylvania 5DLP4 is a 5-inch aluminized P4 monitor CRT with electrostatic focus, magnetic deflection, and an external conductive coating.
Socket description
Small-button Neoeightar 7-contact CRT base family
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- NEOEIGHTAR7
- Base pins
- -
- 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
- 12000 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
Approximate
Focusing Method
Electrostatic text
Deflection Method
Magnetic text
Deflection Angle
53 deg
Approximate
Phosphor
P4 Aluminized text
Fluorescence
White text
Persistence
Medium Short text
Cathode-to-All Capacitance
5 pF
Approximate
Grid1-to-All Capacitance
6 pF
Approximate
External Coating-to-Anode Capacitance Minimum
200 pF
External Coating-to-Anode Capacitance Maximum
400 pF
Other
Maximum Anode Voltage
12000 V
GridDriveService
Minimum Recommended Anode Voltage
8000 V
GridDriveService
Focus Electrode Voltage Minimum
-550 V
Grid4
Focus Electrode Voltage Maximum
1100 V
Grid4
Maximum Grid2 Voltage
550 V
Maximum Grid1 Negative Bias
155 V
Maximum Grid1 Negative Peak
220 V
Maximum Grid1 Positive Peak
2 V
Maximum Heater-Cathode Voltage
200 V
EitherPolarity
Anode Voltage
10000 V
GridDriveService
Focus Voltage Minimum
0 V
Grid4
Focus Voltage Maximum
400 V
Grid4
Grid2 Voltage
300 V
Grid1 Cutoff Voltage Minimum
-72 V
Grid1 Cutoff Voltage Maximum
-35 V
Maximum Grid1 Circuit Resistance
1.5 Mohm