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
5AXP4
Five-inch direct-view cathode-ray picture tube with electrostatic focusing and deflection and a P4 white television phosphor. Its high-voltage display system is intended for compact monochrome television applications.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- DUODECAL5
- Base pins
- 5
- Nominal heater
- 6.3 V / 600 mA
Description
Sylvania 5-inch cathode-ray tube with electrostatic focus, electrostatic deflection, and P4 white television phosphor. Published electrical ratings, capacitances, and operating conditions were extracted from the supplied datasheet.
Socket description
Small-shell Duodecal 5-contact CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- DUODECAL5
- 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
- 18000 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
Characteristic
Heater Voltage
6.3 V
Heater Current
600 mA
FocusingMethod
Electrostatic
DeflectionMethod
Electrostatic
Phosphor
P4 white television phosphor
MinimumUsefulScreen
4.75 in
Other
FinalAnodeVoltageMaximum
18000 V
FocusElectrodeVoltageMaximum
500 V
FinalAnodeVoltage
14000 V
FocusElectrodeVoltageForFocus
300 V
GridVoltageForCutoff
-28 to -72 V
GridCircuitResistanceMaximum
1.5 Mohm
Grid2AndGrid4VoltageMaximum
500 V
GridNegativeBiasMagnitudeMaximum
125 V
Grid2AndGrid4Voltage
300 V