Voltage - Pentode Sharp Cutoff (single) vacuum tubes

Pentode

Directly heated sharp-cutoff pentode for RF and IF amplification in battery-operated receivers.

Base

5Y

Socket

IO

Heater

1.4 V

Sections

1

Pentode

Directly heated sharp-cutoff battery pentode designed for portable radio RF and intermediate-frequency amplifier stages.

Base

5Y

Socket

IO

Heater

1.4 V

Sections

1

Pentode

Directly heated miniature sharp-cutoff battery pentode designed for radio-frequency and intermediate-frequency amplification.

Base

6AR

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Subminiature directly heated sharp-cutoff RF pentode for compact battery-powered high-frequency receiver stages.

Base

8CP

Socket

B8D

Heater

1.25 V

Sections

1

Pentode

Directly heated battery RF pentode designed for radio-frequency amplification in portable receiving equipment.

Base

Not recorded

Socket

IO

Heater

2 V

Sections

1

Pentode

Sharp-cutoff miniature pentode for wideband RF amplification and FM limiter service in high-frequency equipment.

Base

7BK

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Sharp-cutoff miniature pentode for RF/IF amplification in compact equipment at frequencies extending to approximately 400 MHz.

Base

7BD

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Sharp-cutoff miniature RF pentode for Class-A high-frequency amplification, also specified for triode-connected operation.

Base

7BD

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Sharp-cutoff high-transconductance pentode for television IF and VHF tuner RF amplification.

Base

7CM

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Sharp-cutoff high-frequency pentode for compact RF/IF equipment operating to approximately 400 MHz.

Base

7BD

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Sharp-cutoff pentode for television IF amplification and VHF tuner RF service with controlled heater warm-up.

Base

Not recorded

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Sharp-cutoff high-transconductance pentode for IF amplification in color and monochrome television receivers.

Base

7CM

Socket

B7G

Heater

3.15 V

Sections

1

Pentode

Directly heated sharp-cutoff RF pentode with flexible series/parallel filament operation for battery equipment.

Base

7CJ

Socket

B7G

Heater

2.8 V

Sections

1

Pentode

Sharp-cutoff high-transconductance pentode for fixed-gain IF amplification in color and monochrome television receivers.

Base

E9-1

Socket

B9A

Heater

3.15 V

Sections

1

Pentode

Frame-grid sharp-cutoff pentode for high-gain television intermediate-frequency amplifier stages.

Base

Not recorded

Socket

B9A

Heater

3.15 V

Sections

1

Pentode

Frame-grid sharp-cutoff pentode for television IF amplification with approximately 15 mA/V transconductance.

Base

Not recorded

Socket

B9A

Heater

3.5 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9PM

Socket

B9A

Heater

3.5 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9PM

Socket

B9A

Heater

3.5 V

Sections

1

Pentode

Seven-pin miniature professional pentode for Class-A voltage amplification, providing high plate resistance and flexible small-signal operation.

Base

E7-1

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Indirectly heated high-impedance pentode with very high amplification factor and low grid-plate capacitance for high-gain small-signal amplification.

Base

Not recorded

Socket

B5

Heater

4 V

Sections

1

Pentode

Indirectly heated high-gain pentode for substantial voltage-amplifier service, using an unusual 4 V, 2 A heater.

Base

Not recorded

Socket

M7A

Heater

4 V

Sections

1

Pentode

Western Electric miniature sharp-cutoff RF pentode developed for reliable communications and high-frequency amplifier service.

Base

76D

Socket

B7G

Heater

20 V

Sections

1

Pentode

Cossor series-heater pentode for receiver and amplifier service, providing useful small-signal gain in AC/DC mains equipment.

Base

Not recorded

Socket

B7

Heater

40 V

Sections

1

Pentode

Western Electric miniature pentode for professional small-signal amplifier service in communications and related electronic equipment.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Cossor high-slope pentode for receiver and amplifier service, providing unusually high transconductance for an early 4 V heater design.

Base

Not recorded

Socket

B7

Heater

4 V

Sections

1

Pentode

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Base

7BK

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9A0

Socket

B9A

Heater

4.4 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B7G

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9PM

Socket

B9A

Heater

4.2 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9PM

Socket

B9A

Heater

4.5 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9PM

Socket

B9A

Heater

4.5 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

9PM

Socket

B9A

Heater

4.5 V

Sections

1

Pentode

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Base

Not recorded

Socket

B9A

Heater

3.7 V

Sections

1

Pentode

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Base

5633

Socket

SUBMINIATURE6

Heater

6.3 V

Sections

1

Pentode

Subminiature pentode designed for compact voltage-amplifier service in communications, instrumentation, and other space-constrained equipment.

Base

5638

Socket

SUBMINIATURE6

Heater

6.3 V

Sections

1

Pentode

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Base

E7-1

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Base

8N

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Base

Not recorded

Socket

SUBMINIATURE7

Heater

6.3 V

Sections

1

Pentode

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Base

Not recorded

Socket

SUBMINIATURE7

Heater

6.3 V

Sections

1

Pentode

Ruggedized subminiature dual-control pentode for VHF gated-amplifier, mixer, and gain-controlled amplifier service. Independent control electrodes provide versatile switching and frequency-conversion behavior, while very low capacitances support compact high-frequency military equipment.

Base

Not recorded

Socket

SUBMINIATURE8

Heater

6.3 V

Sections

1

Pentode

High-reliability military version of the 5784WA dual-control VHF pentode. It retains gated-amplifier, mixer, and gain-control functions while emphasizing dependable operation under demanding environmental conditions in compact high-frequency equipment.

Base

Not recorded

Socket

SUBMINIATURE8

Heater

6.3 V

Sections

1

Pentode

Subminiature sharp-cutoff pentode designed for high-frequency circuits and on-off electronic control applications.

Base

8DL

Socket

B8D

Heater

6.3 V

Sections

1

Pentode

Improved 5847-family broad-band pentode with additional low-voltage operating characteristics intended to reduce gain variation. It retains the miniature high-gain wideband amplifier function while supporting more controlled operation under reduced supply conditions.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1