Alternatives & variations Download PDF datasheet

5ECP11

Five-inch P11 cathode-ray instrument tube for oscillograph or measurement display, with manufacturer-specified focusing, deflection, accelerating voltages, and phosphor characteristics for precision waveform presentation.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: B12C
Base pins: -
Nominal heater: 6.3 V / 600 mA

Description

High-resolution magnetic-focus, magnetic-deflection CRT with P11 screen for data-recognition and flying-spot-scanner applications.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B12C
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: 30000 V

Published source ratings and characteristics promoted where applicable; additional electrical and operating 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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Application

Application
Cathode-ray display / television / instrumentation

Characteristics

Focusing method
Magnetic
Deflection method
Magnetic
Deflection angle
50 deg
Resolution capability
2000 lines/in

Capacitance

Grid1-to-all capacitance
4 pF
Cathode-to-all capacitance
3.5 pF
External coating capacitance minimum
400 pF
External coating capacitance maximum
800 pF

Other

Typical anode voltage
27000 V
Grid1 visual-cutoff range
-50 to -90 V
Anode voltage minimum
20000 V
Anode voltage maximum
30000 V
Focus-coil current
200 mA