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7BP1

Seven-inch cathode-ray display tube with magnetic focusing, magnetic deflection, P1 phosphor, and approximately 55-degree maximum deflection. General Electric documentation supports general instrument-display service.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

7-inch magnetic-focus and magnetic-deflection cathode-ray tube with P1 phosphor and a 55-degree maximum deflection angle.

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: -
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

No fixed ratings are recorded for this section.

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

Maximum sclid deflecting Angle
55 deg
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Greatest Diameter of Bulb 7 £ 1/8
1 in
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Yinimum Usable Screen Diameteor
6 in
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Heater Voltegeft
6.3 V
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Heater Current
600 mA
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High Voltege Electrode 4900 7000
7700 V
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Voltege 250 250
750 V
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D-¢ Heater-Cathode Fotentialfl
-125 V
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