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1809P1

P1 cathode-ray display tube with electrostatic focusing and combined electrostatic/magnetic deflection, using a medium-persistence green screen and accelerating-anode ratings to 5 kV.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 2.5 V / 2.1 A

Description

Printed co-designation for the 9JP1 cathode-ray tube with electrostatic focus, combined electrostatic/magnetic deflection, and P1 phosphor.

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: 2.5 V
Nominal heater current: 2.1 A
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: 5000 V

Published ratings and characteristics promoted where clearly applicable; additional published values retained as section 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

Heater or filament voltage
2.5 V
Published nominal value
Heater or filament current
2.1 A
Published nominal value
Focusing method
Electrostatic
Published
Deflection method
Electrostatic and magnetic
Published
Phosphor
P1
Medium-persistence green screen

Other

Anode No.2 maximum voltage
5000 V
High-voltage electrode
Anode No.1 maximum voltage
2000 V
Focusing electrode