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 published value
Specialized - Cathode Ray ·CathodeRay
7AUP4
Seven-inch P4 cathode-ray display tube with a white screen, using manufacturer-specified focusing and deflection characteristics for direct visual display in type 7AUP4.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- NINAR9
- Base pins
- -
- Nominal heater
- 6.3 V / 300 mA
Description
Sylvania seven-inch CRT with electrostatic focus, magnetic deflection, and Aluminized P4 white, short-to-medium persistence. Published electrical ratings, capacitances, and operating conditions were extracted from the supplied datasheet.
Socket description
Ninar 9-contact CRT/photomultiplier base family (JEDEC E9-37)
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- NINAR9
- Base pins
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 300 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
- 11000 V
Published ratings and characteristics promoted from the supplied datasheet where legible.
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
300 mA
FocusingMethod
Electrostatic
DeflectionMethod
Magnetic
Deflection Angle
70 degree
Phosphor
Aluminized P4 white, short-to-medium persistence
MinimumUsefulScreen
6 in
Cathode To All Capacitance
7 pF
Grid1 To All Capacitance
9 pF
Grid2 To All Capacitance
7 pF
LineWidth
0.012 in
BeamCurrent=50uA
Other
Grid1CircuitResistanceMaximum
1.5 Mohm
AnodeVoltageMaximum
11000 V
Grid4FocusVoltageMaximum
1100 V
Grid2VoltageMaximum
770 V
HeaterCathodeVoltageMaximum
450 V
Warmup<=15s;HeaterNegative
HeaterCathodeVoltageMaximum
200 V
AfterWarmup
Anode Voltage
8000 V
Grid4VoltageForFocus
0 to 300 V
Grid2 Voltage
300 V
Grid1VoltageForCutoff
-25 to -50 V
Grid2CircuitResistanceMaximum
10000 ohm
Grid4CircuitResistanceMaximum
10000 ohm