Specialized - Cathode Ray vacuum tubes

CathodeRay

Twelve-inch round P4 television picture tube with magnetic focusing and deflection. The gray-filter, aluminized screen and double-field ion-trap arrangement support high-contrast direct viewing at typical anode operation around 11 kV.

Base

Not recorded

Socket

DUODECAL5

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch radar cathode-ray display tube with magnetic focusing and magnetic deflection. Cintel documentation specifies the electron-gun system and interelectrode capacitances, supporting a dedicated radar-display function rather than a conventional television picture-tube role.

Base

Not recorded

Socket

IO

Heater

4 V

Sections

1

CathodeRay

Twelve-inch P4 cathode-ray display tube using a conventional 6.3 V, 0.6 A heater. The available Tung-Sol source is sparse, so the description remains conservative and does not infer undocumented television or instrumentation service.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

High-writing-speed electrostatic cathode-ray oscilloscope tube with a green screen and low deflection-plate capacitance. Typical accelerating voltage is about 4 kV, and the useful screen diameter is approximately 100 mm.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

High-writing-speed electrostatic cathode-ray oscilloscope tube with a long-persistence green screen. It uses approximately 4 kV accelerating voltage and a 100 mm useful display area, retaining traces longer than the related short-persistence version.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch P7 long-persistence cathode-ray tube with magnetic focusing and deflection. RCA identifies oscillograph service, while later documentation supports radar-style persistent display use with blue-white fluorescence and yellow afterglow.

Base

Not recorded

Socket

B12C

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch P7 persistent-screen cathode-ray display tube with magnetic focusing and deflection. Its blue-white fluorescence and long yellow afterglow are suited to radar-style presentation, with high-voltage anode operation for a bright trace.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch P7 long-persistence radar-indicator cathode-ray tube with magnetic focusing and deflection. Its aluminized gray-filter screen gives blue-white fluorescence with yellow afterglow, and the anode is rated to about 15 kV.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch radar cathode-ray display tube with magnetic focusing and deflection. Cintel documentation provides operating and capacitance data for its electron-gun system, identifying it as a specialized radar display rather than a television picture tube.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch metal-cone direct-view television picture tube with magnetic deflection and high-voltage anode operation. Its metal envelope construction reduces weight while retaining the conventional P4 picture-display function of monochrome television receivers.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch direct-view television picture tube with magnetic focusing and deflection, lightweight metal-cone envelope, frosted gray faceplate, and an electron gun designed for an external single-field ion-trap magnet.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch P4 television picture tube with magnetic focusing and magnetic deflection. The high-voltage direct-view CRT uses a white picture screen and conventional magnetic beam control for monochrome television presentation.

Base

Not recorded

Socket

DUODECAL5

Heater

6.3 V

Sections

1

CathodeRay

Twelve-inch P4 television picture tube with magnetic focusing and deflection. Manufacturer documentation identifies a conventional high-voltage direct-view picture tube, with the P4 screen providing the white image used in monochrome television receivers.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Lansdale 12WP4 12-inch monochrome television CRT with magnetic focus and deflection, triode ion-trap gun, gray-tinted P4 white screen and 6.3 V 0.6 A heater.

Base

E9-1

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

12-inch monochrome television cathode-ray picture tube with magnetic focus, magnetic deflection and ion trap; 6.3 V, 0.3 A heater.

Base

B12A

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twelve-and-a-half-inch direct-view television picture tube with electrostatic focusing, magnetic deflection, an ion-trap gun, external conductive coating, and medium-persistence P4 screen. Its construction is optimized for monochrome television display.

Base

Not recorded

Socket

DUODECAL5

Heater

6.3 V

Sections

1

CathodeRay

Sheldon 12ZP4A 12¼-inch monochrome television CRT with magnetic focus and deflection, ion-trap gun, gray-tinted metal-backed P4 white screen and 6.3 V 0.6 A heater.

Base

12D

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Double-gun oscilloscope cathode-ray tube with a roughly 13 cm flat display face. Its dual electron-gun construction permits simultaneous trace presentation for instrumentation, with high accelerating-voltage capability for a bright display.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

CathodeRay

High-sensitivity double-gun oscilloscope tube with a 13 cm faceplate and helical post-deflection acceleration. Two identical electron guns share horizontal deflection while retaining independent vertical systems for simultaneous instrument traces.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

CathodeRay

High-sensitivity split-beam dual-trace oscilloscope tube with a rectangular display, independent astigmatism correction, brightness equalization, and mesh post-deflection acceleration. Its final anode operates around 10 kV for bright dual-trace instrumentation.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

CathodeRay

Flat-faced rectangular general-purpose oscilloscope CRT with an aluminized screen, mesh post-deflection acceleration, and deflection blanking. Its 13 cm diagonal display and high-voltage final acceleration support bright, well-defined instrument traces.

Base

B12F

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Flat-faced 13 cm oscilloscope cathode-ray tube with mesh post-deflection acceleration and an aluminized screen. It is intended for precision wide-band oscilloscopes, combining high accelerating voltage with a display structure optimized for fast instrumentation.

Base

B12F

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Flat-faced split-beam dual-trace oscilloscope tube with distributed post-deflection acceleration and deflection blanking. It is intended for general-purpose dual-trace oscilloscopes, providing two simultaneous traces from a specialized split-beam electron-optical system.

Base

B12F

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Flat-faced rectangular oscilloscope cathode-ray tube with post-deflection acceleration and side-connected deflection plates. Designed for oscilloscope service, it combines electrostatic trace control with final acceleration to about 7 kV for a bright instrument display.

Base

B12F

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Flat-faced rectangular oscilloscope cathode-ray tube with post-deflection acceleration for general-purpose instrument service. Its electrostatic display system operates with several-kilovolt accelerating potentials and is intended to provide a bright, well-defined oscillographic trace.

Base

B12F

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Monoscope-type image-scanning cathode-ray tube for black-and-white television service and TESLA test-picture generation. The tube scans a fixed image target to generate a video test signal rather than serving as an ordinary direct-view display.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Image-scanning cathode-ray tube using magnetic focusing and deflection for film or slide scanning. Its approximately 110 mm useful screen and very short persistence support television or imaging systems that convert projected optical material into a scanned signal.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Image-scanning cathode-ray tube with magnetic focusing and deflection for film or slide scanning. A roughly 110 mm useful screen and very short persistence make it suitable for flying-spot television and image-conversion scanning service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Direct-view television picture tube with aluminized screen and magnetic deflection. Designed for high-voltage monochrome television display service, it typically operates near 12 kV at the anode and uses a 6.3 V, 0.45 A heater.

Base

Not recorded

Socket

B8H

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, yellow-orange screen. 6.3 V filament; 4 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; electromagnetic deflection, green screen. 6.3 V filament; 4 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and combined focusing, blue screen. 6.3 V filament; 4 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and combined focusing, pink screen. 6.3 V filament; 4 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; electromagnetic deflection and electrostatic focusing, blue screen. 6.3 V filament; 10 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and electrostatic focusing, orange screen. 6.3 V filament; 14 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and electrostatic focusing, green screen. 6.3 V filament; 14 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and electrostatic focusing, yellow screen. 6.3 V filament; 14 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, white screen. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, yellow screen. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, green screen. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, yellow-green screen. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, orange screen. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and magnetic focusing, white screen. 6.3 V filament; 12 kV anode.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Russian storage cathode-ray tube for recording and retaining electrical signals. Display: Yellow-Green. Deflection: Electrostatic. Focusing: Electrostatic.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

CathodeRay

Russian storage cathode-ray tube for recording and retaining electrical signals. Display: Yellow-Green. Deflection: Electromagnetic. Focusing: Electrostatic.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

CathodeRay

Russian storage cathode-ray tube for recording and retaining electrical signals. Display: Yellow-Green. Deflection: Electrostatic. Focusing: Electrostatic.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

CathodeRay

Russian storage cathode-ray tube for recording electrical pulses and producing red-to-green visible images, with electromagnetic deflection and electrostatic focusing. Storage time 4 minutes.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1