Alternatives & variations Download PDF datasheet

7AUP7

Seven-inch P7 cathode-ray instrument tube for oscillographic or measurement display, with manufacturer-specified focusing, deflection, accelerating-voltage, and phosphor characteristics.

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 P7 white/yellow-green, long 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 Sylvania CRT voltage ratings, capacitances, focusing/deflection, and typical operating conditions extracted.

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 01

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 P7 white/yellow-green, long 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