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Specialized - Cathode Ray ·CathodeRay

SC3399

Large multi-gun oscilloscope CRT with electrostatic focusing and deflection and independent astigmatism control. Multiple electron guns support simultaneous precision waveform presentation.

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

Description

Large multi-gun electrostatic-focus/electrostatic-deflection oscilloscope CRT with independent astigmatism control.

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

Cathode Ray

X-ray radiationInterelectrode capacitances
Max plate voltage
5500 V

Special-purpose cathode-ray tube; published ratings and construction data captured.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Focusing method

    Electrostatic

  • Deflection method

    Electrostatic

Application

  • Application

    Electrostatic charge printing

Construction

  • Multiple independent guns

    Yes

Data set 02

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    1.2 A

  • Focusing method

    Electrostatic

  • Deflection method

    Electrostatic

Other

  • Maximum principal anode/accelerator voltage

    5500 V

  • Typical anode voltage

    5000 V

  • Typical astigmatism-electrode voltage

    5000 V

  • Grid1 circuit resistance maximum

    1.5 Mohm

  • Deflection-circuit resistance maximum

    1 Mohm

Application

  • Application

    Large multi-gun electrostatic-focus/electrostatic-deflection oscilloscope CRT

Construction

  • Gun configuration

    Multiple independent viewing guns

  • Astigmatism control

    Independent