Specialized - Cathode Ray vacuum tubes

CathodeRay

P7 cathode-ray simulator tube for visual inspection of input signals and checking focus and deflection circuitry. Raytheon documentation gives accelerating capability to approximately 6 kV.

Base

Not recorded

Socket

DUODECAL12

Heater

8.3 V

Sections

1

CathodeRay

P7 cathode-ray simulator tube for visual inspection of input signals and checking focus and deflection circuitry. Raytheon documentation gives accelerating capability to approximately 8 kV.

Base

Not recorded

Socket

DUODECAL12

Heater

6.3 V

Sections

1

CathodeRay

Three-inch rectangular-face Du Mont CRT for lightweight oscillographs, with improved mechanical rigidity and electrical stability. Its P1 screen provides green fluorescence with medium persistence for general waveform viewing.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch cathode-ray tube in an established electrostatic oscilloscope family with P11 screen designation. No separate manufacturer artifact is attached for this exact variant, so additional individual characteristics are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch cathode-ray tube in an established electrostatic oscilloscope family with P2 screen designation. No separate manufacturer artifact is attached for this exact variant, so additional individual characteristics are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch cathode-ray tube in an established electrostatic oscilloscope family with P7 screen designation. No separate manufacturer artifact is attached for this exact variant, so additional individual characteristics are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch oscilloscope and instrument cathode-ray tube with electrostatic focusing and electrostatic deflection and a P1 screen. Manufacturer documentation supports compact waveform, measurement, and indicator-display service.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch cathode-ray tube in an established electrostatic oscilloscope family with P2 screen designation. No separate manufacturer artifact is attached for this exact variant, so additional individual characteristics are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch cathode-ray tube in an established electrostatic oscilloscope family with P7 screen designation. No separate manufacturer artifact is attached for this exact variant, so additional individual characteristics are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face Du Mont instrument CRT with very high deflection sensitivity, full scan, and a linear post-accelerator. Its P1 screen provides green fluorescence with medium persistence.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch cathode-ray tube in an established electrostatic oscilloscope family with P11 screen designation. No separate manufacturer artifact is attached for this exact variant, so additional individual characteristics are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face oscilloscope CRT with very high deflection sensitivity, full scan, electrostatic focusing and deflection, and a linear post-accelerator. This variant uses a P2 blue-green/green, long persistence screen.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face oscilloscope CRT with very high deflection sensitivity, full scan, electrostatic focusing and deflection, and a linear post-accelerator. This variant uses a P7 blue/blue-white, long persistence screen.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection. Its P1 green, medium persistence screen and published deflection characteristics support compact precision oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection. Its P11 blue, short persistence screen and published deflection characteristics support compact precision oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection. Its P2 blue-green/green, long persistence screen and published deflection characteristics support compact precision oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection. Its P7 blue-white/yellow, long persistence screen and published deflection characteristics support compact precision oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch flat-face oscilloscope CRT with electrostatic focusing and deflection plus helical post-acceleration. The post-accelerated beam provides increased brightness while retaining the fast, precise electrostatic scanning needed for instrumentation.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch round-face viewfinder cathode-ray tube with electrostatic focusing and magnetic deflection. Its compact direct-view construction is intended for camera or television viewfinder service rather than general-purpose oscillography.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and high-voltage accelerating operation. Its P1 green, medium persistence screen provides the persistence characteristics needed for oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and high-voltage accelerating operation. Its P11 blue, short persistence screen provides the persistence characteristics needed for oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and high-voltage accelerating operation. Its P12 orange, long persistence screen provides the persistence characteristics needed for oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and high-voltage accelerating operation. Its P2 blue-green/green, long persistence screen provides the persistence characteristics needed for oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and high-voltage accelerating operation. Its P7 blue-white/yellow, long persistence screen provides the persistence characteristics needed for oscillographic instrumentation.

Base

Not recorded

Socket

B12A

Heater

1.5 V

Sections

1

CathodeRay

Three-inch flat-face high-sensitivity cathode-ray tube with electrostatic focusing and deflection. Its precision electrostatic beam system is suited to compact oscilloscope and measuring-instrument applications.

Base

Not recorded

Socket

DIHEPTAL12

Heater

6.3 V

Sections

1

CathodeRay

Three-inch high-vacuum electrostatic cathode-ray tube with P1 phosphor, designed for oscillographic applications. Electrostatic focusing and deflection provide direct, precise trace positioning for measurement equipment.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch direct-view oscilloscope CRT with electrostatic focusing and deflection and a P1 green medium-persistence screen. Its compact high-vacuum construction is intended for general oscillographic measurement service.

Base

Not recorded

Socket

OCTALCRT8

Heater

6.3 V

Sections

1

CathodeRay

Three-inch rectangular-face cathode-ray tube for small lightweight oscillograph applications, using encapsulated axial leads. This variant uses a P1 green, medium persistence screen for its characteristic trace persistence.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

CathodeRay

Three-inch rectangular-face cathode-ray tube for small lightweight oscillograph applications, using encapsulated axial leads. This variant uses a P11 blue, short persistence screen for its characteristic trace persistence.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch rectangular-face cathode-ray tube for small lightweight oscillograph applications, using encapsulated axial leads. This variant uses a P2 blue-green/green, long persistence screen for its characteristic trace persistence.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch rectangular-face cathode-ray tube for small lightweight oscillograph applications, using encapsulated axial leads. This variant uses a P5 blue, short persistence screen for its characteristic trace persistence.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch rectangular-face cathode-ray tube for small lightweight oscillograph applications, using encapsulated axial leads. This variant uses a P7 blue/blue-white, long persistence screen for its characteristic trace persistence.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch high-resolution flat-face dual-beam oscilloscope CRT with post-acceleration and precise beam-tracking accuracy. Its P1 green, medium persistence screen supports simultaneous comparative oscillographic traces.

Base

Not recorded

Socket

PENTAQUINTAL25

Heater

6.3 V

Sections

1

CathodeRay

Three-inch high-resolution flat-face dual-beam oscilloscope CRT with post-acceleration and precise beam-tracking accuracy. Its P11 blue, short persistence screen supports simultaneous comparative oscillographic traces.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch high-resolution flat-face dual-beam oscilloscope CRT with post-acceleration and precise beam-tracking accuracy. Its P2 blue-green/green, long persistence screen supports simultaneous comparative oscillographic traces.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch high-resolution flat-face dual-beam oscilloscope CRT with post-acceleration and precise beam-tracking accuracy. Its P7 blue/blue-white, long persistence screen supports simultaneous comparative oscillographic traces.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face high-sensitivity cathode-ray tube with electrostatic focusing and deflection, designed specifically for transistorized oscilloscopes. Its compact electrostatic system provides efficient trace deflection at relatively low drive levels.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Flat-face three-inch oscilloscope CRT with a single electron gun, electrostatic focusing, and electrostatic deflection. Designed for accurate measuring equipment, it provides a compact direct-view precision trace.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face oscilloscope CRT with electrostatic focusing, double electrostatic deflection, and post-deflection acceleration. Designed for dual-trace oscilloscope service, it combines precise beam control with increased post-accelerated screen brightness.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face oscilloscope CRT with electrostatic focusing, double electrostatic deflection, and post-deflection acceleration. Designed for dual-trace oscilloscope service, it combines precise beam control with increased post-accelerated screen brightness.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Three-inch flat-face oscilloscope CRT with electrostatic focusing, double electrostatic deflection, and post-deflection acceleration. Designed for dual-trace oscilloscope service, it combines precise beam control with increased post-accelerated screen brightness.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Compact cathode-ray instrument tube with post-acceleration from 1.2 to 2.5 kV, a 300 V accelerator supply, isolation shielding, and electrostatic deflection-electrode ratings.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

The 3CP1S1 is a cathode-ray tube with electrostatic focusing and deflection, featuring a green P1 phosphor screen. Its electron gun and multiple deflection electrodes form one functional CRT section. Designed for electronic display and measurement applications, it provides a compact green fluorescent trace or spot.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Compact electrostatically focused and deflected cathode-ray instrument tube intended for waveform and measurement display, with manufacturer-specified accelerating, focusing, and deflection-electrode ratings.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

RMA 3DP1-S1 specialized electrostatic-focus and electrostatic-deflection oscilloscope CRT with additional radial deflection electrode, green P1 phosphor, 6.3 V 0.6 A heater.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Electrostatically focused and deflected cathode-ray instrument tube electrically based on the 3DP1A, fitted with the distinctive S2 external scale for measurement and waveform display.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Compact Cintel electrostatic cathode-ray instrument tube with electrostatic focusing and deflection, operating at up to about 4 kV final-anode voltage and a small precision display screen.

Base

Not recorded

Socket

B12A

Heater

4 V

Sections

1

CathodeRay

Compact Cintel electrostatic cathode-ray instrument tube with electrostatic focusing and deflection, operating at up to about 5 kV final-anode voltage and a small precision display screen.

Base

Not recorded

Socket

B14

Heater

6.3 V

Sections

1