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

5DYP2

Five-inch P2 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
B6-203
Socket code
DUODECAL6
Base pins
6
Nominal heater
6.3 V / 300 mA

Description

5-inch magnetic-deflection cathode-ray tube with a low-voltage electrostatic focus lens, low heater current, compact dimensions, and an aluminized phosphor screen.

Socket description

Small-shell Duodecal 6-contact CRT base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
B6-203
Socket code
DUODECAL6
Base pins
6
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

B6-203 - 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

No fixed ratings are recorded for this section.

CRT electrode ratings, focusing/deflection data, capacitances, and operating voltages are preserved 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

1951 Thomas Electronics

Published operating points and test conditions from this source.

SECTION 0

Cathode Ray

Characteristic

  • FocusingMethod

    Electrostatic

  • DeflectionMethod

    Magnetic

  • Deflection Angle

    53 degree

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

Other

  • MaximumMainAnodeOrAcceleratorVoltage

    11000 V

  • TypicalMainAnodeOrAcceleratorVoltage

    7000 V

  • MaximumFocusingElectrodeVoltage

    1100 V

  • TypicalFocusingElectrodeVoltage

    0 to 250 V

  • MaximumGrid1NegativeBiasMagnitude

    180 V

  • Maximum Heater Cathode Voltage

    180 V

Capacitance

  • Cathode To All Capacitance

    5 pF

  • Grid1 To All Capacitance

    6 pF