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Specialized - Cathode Ray ·CathodeRay

1400B

Rectangular flat-faced oscilloscope cathode-ray tube designed for high final-anode voltage and instrument display service. Typical final acceleration is about 12 kV, providing a bright trace for high-performance oscillographic applications.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
B12F
Socket code
-
Base pins
12
Nominal heater
6.3 V / 300 mA

Description

A rectangular flat-faced oscilloscope tube designed for high final-anode voltage operation and instrument display service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
B12F
Socket code
-
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

B12F - 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 0

Cathode Ray

X-ray radiationInterelectrode capacitances
Max plate voltage
13500 V

Fourth anode absolute maximum 13.5 kV.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 0

Cathode Ray

Other

  • Third Anode Voltage Maximum

    2000 V

  • Typical Fourth Anode Voltage

    12000 V

    TypicalOperation