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Tube Tinker — Electron Tube Database
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Specialized - Cathode Ray ·CathodeRay

TMA403X

Dual-function electronic storage or scan-converter tube with separate writing and reading processes. Charge patterns are stored on an internal target and subsequently read in the same or a converted scanning format.

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

Description

Electrostatic-memory analysis/storage tube with separate writing and reading functions.

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
8000 V

Published source values promoted where applicable; additional electrical, storage, RF, pulse and cooling data retained as 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

1958 Compagnie General

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Storage / analysis function

    Electrostatic memory analysis

  • Writing-gun focusing

    Electrostatic

  • Writing-gun deflection

    Magnetic