Specialized - Cathode Ray ·CathodeRay
Compact P4 cathode-ray display tube with electrostatic focusing, magnetic deflection, and an aluminized screen; phosphor characteristics provide the persistence and fluorescence appropriate to the P4 variant.
The Du Mont 3AGP4 is a three-inch aluminized radar CRT designed for miniature equipment with a low-current heater and approximately 70-degree magnetic deflection. This variant uses a P4 screen with white fluorescence and short-to-medium persistence.
Small-button Noval 9-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Cathode-ray display/electron-gun section.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater Voltage
6.3 V
Heater Current
300 mA
Focusing Method
Electrostatic text
Deflection Method
Magnetic text
Phosphor
P4 text
Fluorescence
White text
Persistence
Short-to-medium text
Deflection Angle
70 deg
Approximate
Screen Construction
Aluminized text