Electronic tube and vacuum tube catalog

Base

9CV

Socket code

B9A

Electrical Summary

Heater	10.6 V / 450 mA
Plate	275 V / 12 W
Screen	220 V / 2.1 W
Ik max	110 mA
rP	26,000 Ω
gm	11 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Power pentode designed for vertical-deflection amplifier service in color and black-and-white television receivers. Its output capability is intended to drive the vertical scanning system rather than ordinary small-signal amplification.

Base

—

Socket code

B9A

Electrical Summary

Heater	12.6 V / 300 mA
Plate	250 V
Screen	250 V
gm	8.3 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Output pentode intended for Class-A audio power stages or television frame time-base service, combining receiver audio-output and vertical-sweep applications.

Base

9CV

Socket code

B9A

Electrical Summary

Heater	15 V / 300 mA
Plate	250 V / 12 W
Screen	200 V / 2.5 W
Ik max	100 mA
rP	30,000 Ω
gm	11.3 mA/V
μ	8

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Power pentode designed for vertical-deflection amplifier service in color and black-and-white television receivers. It provides the output current and voltage swing required by the vertical scanning system.

Base

9BL

Socket code

B9A

Electrical Summary

Heater	16.5 V / 300 mA
Plate	250 V / 9 W
Screen	250 V / 2.5 W
Ik max	75 mA
rP	20,000 Ω
gm	9 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Output pentode designed for television frame time-base output or audio-output service. Its power capability supports either vertical-deflection drive or conventional low-frequency load power.

Base

—

Socket code

B9A

Electrical Summary

Heater	16.5 V / 300 mA
Plate	250 V / 9 W
Screen	250 V / 2.5 W
Ik max	75 mA
rP	20,000 Ω
gm	9 mA/V
μ	10

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Output pentode designed for audio power amplification and television frame/vertical time-base output service.

Base

—

Socket code

B9A

Electrical Summary

Heater	15 V / 300 mA
Plate	250 V / 12 W
Screen	200 V / 1.75 W
Ik max	100 mA
rP	23,000 Ω
gm	10 mA/V
μ	8

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Output pentode designed for audio power amplification and television frame/vertical time-base output service.

Base

Refer to variations

Socket code

B9A

Electrical Summary

Heater	6.3 V / 800 mA
Plate	250 V / 9 W

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Pentode designed for television frame time-base output and sound-output service. Its power capability supports either vertical-deflection drive or audio-frequency load power in television receivers.

Base

9NW

Socket code

B9A

Electrical Summary

Heater	6.3 V / 760 mA
Plate	350 V / 10 W
Screen	330 V / 2 W
rP	24,000 Ω
gm	20 mA/V
μ	33

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Nine-pin miniature power pentode designed for vertical-deflection amplifier service in television receivers using wide-angle picture tubes.

Base

B6-8BI

Socket code

IO

Electrical Summary

Heater	6.3 V / 400 mA
Plate	315 V / 8.5 W
Screen	285 V / 2.8 W
Ik max	25 mA
rP	90,000 Ω
gm	2.3 mA/V
μ	150

Sections

1

8 pins - IO - International Octal

Glass-octal power pentode for radio-receiver output stages, also usable in triode connection for television vertical-deflection amplification. Its primary role is low-frequency power output.

Base

9CV

Socket code

B9A

Electrical Summary

Heater	8 V / 600 mA
Plate	275 V / 14 W
Screen	220 V / 2.1 W
Ik max	110 mA
rP	26,000 Ω
gm	11 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

High-current power pentode designed specifically for television vertical-deflection output service.

Base

Refer to variations

Socket code

B9D

Electrical Summary

Heater	6.3 V / 825 mA
Plate	400 V / 12 W
Screen	275 V / 3 W
Ik max	100 mA
gm	9 mA/V

Sections

1

9 pins - B9D - Magnoval 9-contact

High-current frame-output pentode for vertical deflection in color television receivers.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 760 mA
Plate	300 V / 10.5 W
Screen	250 V / 2 W
Ik max	75 mA

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Pulse-oriented power pentode specifically designed for television vertical-deflection output stages.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 760 mA

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Special-quality EL84-family power pentode designed for vertical-deflection and audio-frequency service. It combines output-stage capability with professional-quality construction for television and AF applications.

Base

9CV

Socket code

B9A

Electrical Summary

Heater	6.3 V / 760 mA
Plate	250 V / 12 W
Screen	200 V / 1.75 W
Ik max	100 mA
rP	23,000 Ω
gm	10 mA/V
μ	8

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Power pentode designed for vertical-deflection amplifier service in color and black-and-white television receivers. Its output capability supplies the current and voltage swing required by vertical scanning circuits.

Base

9C12

Socket code

B9A

Electrical Summary

Heater	6.3 V / 760 mA
Plate	250 V / 12 W
Screen	1.75 W
gm	11 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Power pentode designed for both audio-frequency and television vertical-deflection amplification. Its output-stage characteristics support either low-frequency load power or frame-scanning drive.

Base

9CV

Socket code

B9A

Electrical Summary

Heater	10.6 V / 450 mA
Plate	275 V / 14 W
Screen	220 V / 2.1 W
Ik max	110 mA
rP	26,000 Ω
gm	11 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Power pentode specifically designed for television vertical-deflection amplifier service.

Base

—

Socket code

B9A

Electrical Summary

Heater	16.5 V / 300 mA
Plate	250 V / 9 W
Screen	250 V / 2.5 W
rP	20,000 Ω
gm	9 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

High-slope Marconi power pentode for both audio output and television frame time-base service.

Base

—

Socket code

IO

Electrical Summary

Heater	19 V / 300 mA
Plate	250 V / 9 W
Screen	275 V / 2.5 W
Ik max	55 mA
rP	55,000 Ω
gm	8.6 mA/V

Sections

1

8 pins - IO - International Octal

Power-output pentode designed for television frame/vertical time-base output and audio power-amplifier service.

Base

—

Socket code

B9A

Electrical Summary

Heater	15 V / 300 mA

Sections

1

9 pins - B9A - Small-button Noval 9-contact

High-current Telefunken power pentode specifically designed for television vertical-deflection output stages.

Base

Refer to variations

Socket code

B9A

Electrical Summary

Heater	16.5 V / 300 mA
Plate	170 V / 9 W
Screen	170 V / 2.9 W
Ik max	75 mA
rP	20,000 Ω
gm	9 mA/V
μ	10

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Series-heater power pentode for television sound, vertical-deflection, and audio-frequency output service.

Base

9CV

Socket code

B9A

Electrical Summary

Heater	15 V / 285 mA
Plate	220 V / 12 W
Screen	220 V / 1.75 W
Ik max	100 mA
rP	23,000 Ω
gm	9 mA/V
μ	8

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Series-heater power pentode for both audio output and television vertical/frame-deflection service.

Base

9CV

Socket code

B9A

Electrical Summary

Heater	8 V / 600 mA
Plate	250 V / 12 W
Screen	250 V / 1.75 W
Ik max	100 mA
rP	26,000 Ω
gm	11 mA/V

Sections

1

9 pins - B9A - Small-button Noval 9-contact

High-transconductance power pentode for television vertical-deflection and sound-output service.