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Specialized - Photo Tube ·CameraPickup

2P22

Image-orthicon television camera tube using magnetic focusing and deflection, a semitransparent photocathode, and electron-multiplier output. Designed for sensitive television image pickup rather than simple point light detection.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

Image orthicon television camera tube using magnetic focusing and magnetic deflection, with a semitransparent photocathode and electron-multiplier output.

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
6.3 V
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

CameraPickup

X-ray radiationInterelectrode capacitances
Max plate voltage
1650 V

Published ratings and characteristics promoted where clearly stated; remaining 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

CameraPickup

Characteristics

  • Heater or filament voltage

    6.3 V

    Published nominal value

  • Heater or filament current

    600 mA

    Published nominal value

  • Useful image diagonal

    1.03125 in

    1:1 aspect ratio

  • Focusing method

    Magnetic

    Published

  • Deflection method

    Magnetic

    Published

Other

  • Photocathode maximum voltage

    400 V

    Absolute maximum

  • Anode-supply voltage

    1650 V

    Published maximum

  • Voltage per multiplier stage

    350 V

    Published maximum