Specialized - Cathode Ray vacuum tubes

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

DUODECAL6

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view television picture tube with electrostatic focusing and magnetic deflection. National Video documents high-voltage operation around 20 kV and explicitly warns about X-ray radiation from the operating CRT.

Base

12L

Socket

DUODECAL6

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

12L

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch rectangular glass television picture tube with low-voltage electrostatic focusing and a controlled-warm-up heater. Its high-voltage anode system operates to about 20 kV for direct-view monochrome display.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch cathode-ray picture tube documented by Philco for direct-view television service. The approved source is sparse in the extracted record, so additional construction and performance details are not asserted.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

CathodeRay

Twenty-one-inch P7 cathode-ray display tube using magnetic focusing and magnetic deflection at comparatively low anode voltage. Its persistent-screen designation and approximately 9 kV maximum distinguish it from conventional P4 television picture tubes.

Base

12N

Socket

DUODECAL6

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

DUODECAL6

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

DUODECAL6

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and a P4 display screen. Manufacturer documentation places it in the high-voltage receiver CRT family, with construction optimized for bright rectangular picture presentation.

Base

12N

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch cathode-ray tube documented by Philco. The available source identifies it as a CRT but provides insufficient extracted functional detail to justify a narrower television, radar, or instrumentation classification.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

CathodeRay

Twenty-one-inch high-resolution cathode-ray display tube with magnetic focusing and magnetic deflection, intended for military and industrial applications. Its high-voltage direct-view design is optimized for detailed display work rather than ordinary consumer television service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

12L

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

NEOEIGHTAR7

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch color television picture tube with electrostatic focusing, magnetic deflection, and a P22 color screen. Its high-voltage direct-view construction is designed for color receiver service and carries published X-ray precautions.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

67-208

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch color television picture tube with electrostatic focusing, magnetic deflection, and a P22 color screen. Its high-voltage direct-view construction is designed for color receiver service and carries published X-ray precautions.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch color television picture tube with electrostatic focusing, magnetic deflection, and a P22 color screen. Its high-voltage direct-view construction is designed for color receiver service and carries published X-ray precautions.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

B12A

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

12L

Socket

DUODECAL6

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

12L

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view monochrome television picture tube with magnetic deflection and high-voltage operation. Manufacturer documentation describes its focusing system, picture-screen construction, and receiver-display characteristics for large-screen television service.

Base

B7-208

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch 114-degree monochrome television CRT with low-voltage electrostatic focus, magnetic deflection, tension-band implosion protection, low-grid-2 cathode drive, and an aluminized P4 white screen for bright direct-view receiver service.

Base

Not recorded

Socket

DUODECAL5

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch 114-degree monochrome television CRT with low-voltage electrostatic focus, magnetic deflection, spherical faceplate, and an aluminized P4 white screen. Its wide-angle design supports a shallow large-screen receiver cabinet.

Base

Not recorded

Socket

DUODECAL5

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch 114-degree monochrome television picture tube with electrostatic focus, magnetic deflection, and an aluminized P4 screen. Designed for high-voltage direct-view receiver service, it combines wide-angle scanning with a bright white display.

Base

Not recorded

Socket

DUODECAL5

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch color television picture tube with electrostatic focusing, magnetic deflection, and a P22 color screen. Its high-voltage direct-view construction is designed for color receiver service and carries published X-ray precautions.

Base

J164-1

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch color television picture tube with electrostatic focusing, magnetic deflection, and a P22 color screen. Its high-voltage direct-view construction is designed for color receiver service and carries published X-ray precautions.

Base

J164-1

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch rectangular direct-view television picture tube with magnetic focus and deflection, gray-filter faceplate, white P4 phosphor, and a built-in ion-trap/focusing unit for large-screen monochrome receiver service.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch rectangular direct-view television picture tube with magnetic focus and deflection, gray-filter faceplate, white P4 phosphor, and a built-in ion-trap/focusing unit. The A version adds an aluminized screen.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch rectangular direct-view television picture tube with electrostatic focus, magnetic deflection, gray-filter faceplate, external single-field ion trap, and white P4 medium-persistence screen for monochrome receiver service.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch rectangular direct-view television picture tube with electrostatic focus, magnetic deflection, gray-filter faceplate, external single-field ion trap, and white P4 medium-persistence screen for monochrome receiver service.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch direct-view television picture tube with low-voltage electrostatic focus, magnetic deflection, external single-field ion trap, and white P4 medium-persistence screen. Approximately 70-degree deflection supports conventional monochrome receiver construction.

Base

12M

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch color television picture tube with electrostatic focusing, magnetic deflection, and a P22 color screen. Its high-voltage direct-view construction is designed for color receiver service and carries published X-ray precautions.

Base

48E

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Twenty-one-inch rectangular direct-view television picture tube with magnetic focus and deflection, external single-field ion trap, gray-filter faceplate, and white P4 medium-persistence phosphor for large-screen monochrome receiver service.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Large P4 monochrome television picture tube for high-voltage direct-view service, using magnetic deflection and manufacturer-specified focusing and beam-control arrangements for type 21WP4A.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1

CathodeRay

Large P4 monochrome television picture tube for high-voltage direct-view service, using magnetic deflection and manufacturer-specified focusing and beam-control arrangements for type 21WP4B.

Base

12N

Socket

Not recorded

Heater

6.3 V

Sections

1

CathodeRay

Large P4 monochrome television picture tube for high-voltage direct-view service, using magnetic deflection and manufacturer-specified focusing and beam-control arrangements for type 21XP4.

Base

Not recorded

Socket

B12D

Heater

6.3 V

Sections

1