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Specialized - Cathode Ray ·CathodeRay

DB1334

Philips cathode-ray oscilloscope tube for oscillography, using electrostatic beam control. Manufacturer documentation provides screen, focusing and deflection, capacitance, sensitivity, rating, and operating data where published.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B12A
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

High-sensitivity oscillography cathode-ray tube with electrostatic deflection.

Socket description

Duodecal 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12A
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
6000 V

Electrostatic focusing/deflection CRT section; electrical/screen/deflection data retained in parameter rows.

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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    600 mA

  • DeflectionMethod

    Electrostatic

Data set 02

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristic

  • Deflection sensitivity N1 without post-acceleration

    0.68 to 0.84 mm/V

  • Deflection sensitivity N2 without post-acceleration

    0.51 to 0.63 mm/V

  • Deflection sensitivity N1 with post-acceleration

    0.51 to 0.63 mm/V

  • Deflection sensitivity N2 with post-acceleration

    0.38 to 0.47 mm/V

Other

  • Maximum post-acceleration voltage

    6000 V

  • Maximum main accelerating voltage

    2600 V

  • Minimum main accelerating voltage

    1000 V

  • Maximum focusing-grid voltage

    1000 V

  • Maximum heater-cathode voltage

    180 V

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Accelerator voltage

    2600 V

  • Minimum accelerator voltage

    1000 V

  • Maximum post-acceleration ratio

    2.3