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7ARP4

Seven-inch P4 cathode-ray display tube with a white screen, using manufacturer-specified focusing and deflection characteristics for direct visual display in type 7ARP4.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 0 V / -

Description

7-inch electrostatic-focus, magnetic-deflection cathode-ray tube for radar and oscillographic applications requiring short persistence, with a high-resolution gun and aluminized screen.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 0 V
Nominal heater current: -
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 cathode current: 100 mA

Promoted fields mapped by printed headings; additional data retained in parameters.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

‘Heater Voltage © ¢ & @ & 0 & & 2 06 & o & @ ._oﬂo_o e o o e o
63 V
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Heater Current o« o o o o o « o « a o « « a s s s o « o « 0.6
108 A
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Greatest Bulb Diameter « « « « * 8 s s s s e s e 7-3/16t1/
8 in
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Anode Contact Aligns with Pin-No, 3 Position#
10 deg
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Anode VO]-tage ‘ s & & o ® & e o @ e o & o ® s v ® o s 0o e o . 10,
0 V
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Focusing-Electrode Voltage for Focusi* . L) o -50 to
250 V
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Grid-Noe. 2 Voltage o« o« o ¢ o o . °» e oo o o
330 V
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the ancde woltage should not be less than
7000 V
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pin no. 3 p'osition +
10 deg
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¢~
4 in
Published datasheet line; semantic text-layer recovery