Electronic tube and vacuum tube catalog

Base

12BU

Socket code

B12C

Sections

2

Heater

9.8 V / 600 mA

Plate

S1: 330 V / 1.7 W · S2: 275 V / 10 W

Screen

S1: 330 V / 1.1 W · S2: 275 V / 2 W

rP

S1: 150,000 Ω · S2: 100,000 Ω

gm

S1: 1 mA/V · S2: 6.5 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar combination tube for television receivers, integrating a beam-power audio output section with a dual-control pentode used for FM detection and signal processing.

Base

12EZ

Socket code

B12C

Sections

2

Heater

9.8 V / 600 mA

Plate

S1: 275 V / 10 W · S2: 330 V / 1.7 W

Screen

S1: 275 V / 2 W · S2: 330 V / 1.1 W

Ik max

S1: 60 mA

rP

S1: 100,000 Ω · S2: 150,000 Ω

gm

S1: 6.5 mA/V · S2: 1 mA/V

12 pins - B12C - Duodecar 12-contact

Compact beam-power output tube for receiver audio stages, providing useful Class-A output power from a heater arrangement intended for series-string equipment.

Base

12EZ

Socket code

B12C

Sections

2

Heater

12.6 V / 450 mA

Plate

S1: 165 V / 6 W · S2: 330 V / 1.7 W

Screen

S1: 150 V / 1.25 W · S2: 330 V / 1.1 W

Ik max

S1: 60 A

rP

S1: 33,000 Ω · S2: 150,000 Ω

gm

S1: 5.6 mA/V · S2: 0.4 mA/V

12 pins - B12C - Duodecar 12-contact

Combination tube integrating a beam-power audio output section with a dual-control pentode, allowing power amplification and small-signal receiver functions in one envelope.

Base

12BU

Socket code

B12C

Sections

2

Heater

12.6 V / 450 mA

Plate

S1: 275 V / 10 W · S2: 330 V / 1.7 W

Screen

S1: 275 V / 2 W · S2: 330 V / 1.1 W

rP

S1: 100,000 Ω · S2: 150,000 Ω

gm

S1: 10 mA/V · S2: 1 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar television combination tube integrating a beam-power audio output stage with a sharp-cutoff dual-control pentode used for FM sound detection.

Base

12EZ

Socket code

B12C

Sections

2

Heater

12.6 V / 600 mA

Plate

S1: 330 V / 1.7 W · S2: 165 V / 6.5 W

Screen

S1: 330 V / 1.1 W · S2: 150 V / 1.8 W

Ik max

S1: 65 A · S2: 65 mA

rP

S1: 30,000 Ω · S2: 30,000 Ω

gm

S1: 8.6 mA/V · S2: 8.6 mA/V

12 pins - B12C - Duodecar 12-contact

Multi-section television receiving tube incorporating a beam-power audio output stage with an additional small-signal section for receiver amplification or control functions.

Base

12BU

Socket code

B12C

Sections

2

Heater

12.6 V / 600 mA

Plate

S1: 165 V / 6.5 W

Screen

S1: 150 V / 1.8 W

12 pins - B12C - Duodecar 12-contact

Compactron dissimilar double pentode; the available reference does not reproduce enough application detail to justify a narrower functional classification.

Base

12EZ

Socket code

B12C

Sections

2

Heater

12.6 V / 450 mA

12 pins - B12C - Duodecar 12-contact

Combination tube integrating a beam-power output section with a sharp-cutoff dual-control pentode for television FM detection and audio-frequency power amplification.

Base

Refer to variations

Socket code

B12C

Sections

2

Heater

13.2 V / 450 mA

Plate

S1: 330 V / 2.5 W · S2: 330 V / 10 W

Screen

S1: 110 V · S2: 275 V / 2 W

Ik max

S1: 13 mA · S2: 13 A

rP

S1: 100,000 Ω · S2: 100,000 Ω

gm

S1: 6.5 mA/V · S2: 6.5 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar combination tube integrating limiter, discriminator, and audio power-output functions for FM radio and television receivers, including 10.7 MHz discriminator operation.

Base

12EZ

Socket code

B12C

Sections

2

Heater

13.2 V / 450 mA

Plate

S1: 165 V / 6.5 W · S2: 330 V / 1.7 W

Screen

S1: 150 V / 1.8 W · S2: 33 V / 1.1 W

Ik max

S1: 65 mA

rP

S1: 58,000 Ω · S2: 150,000 Ω

gm

S1: 6.4 mA/V · S2: 1 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar combination tube for television FM detection and audio-frequency output amplification, pairing a detector pentode with a beam-power audio-output section.

Base

Refer to variations

Socket code

B12C

Sections

2

Heater

13.2 V / 450 mA

Plate

S1: 250 V / 10 W · S2: 250 V / 10 W

Screen

S1: 330 V · S2: 330 V

gm

S1: 0.36 mA/V · S2: 0.36 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar combination tube for FM radio and television receivers, integrating limiter/discriminator functions with a beam-power audio-output stage.

Base

—

Socket code

B12C

Sections

2

Heater

16.8 V / 450 mA

Plate

S1: 330 V / 1.7 W · S2: 165 V / 6.5 W

Screen

S1: 330 V / 1.1 W · S2: 150 V / 1.8 W

Ik max

S2: 65 mA

rP

S1: 150,000 Ω · S2: 150 Ω

gm

S1: 1 mA/V · S2: 8.6 mA/V

12 pins - B12C - Duodecar 12-contact

Combination dual-control sharp-cutoff pentode and beam-power section for television FM detection and audio-frequency output amplification, with about 2.4 watts maximum-signal output.

Base

12EZ

Socket code

B12C

Sections

2

Heater

16.8 V / 450 mA

Plate

S1: 330 V / 1.7 W · S2: 165 V / 6.5 W

Screen

S1: 330 V / 1.1 W · S2: 150 V / 1.8 W

12 pins - B12C - Duodecar 12-contact

Dual-pentode television tube with insufficient surviving source description in the available record to support a narrower functional classification.

Base

—

Socket code

B12C

Sections

2

Heater

24.2 V / 315 mA

Plate

S1: 165 V / 6.5 W · S2: 330 V / 1.7 W

Screen

S1: 150 V / 1.8 W · S2: 330 V / 1.1 W

Ik max

S1: 65 mA

rP

S1: 30,000 Ω · S2: 150,000 Ω

gm

S1: 8.6 mA/V · S2: 1 mA/V

12 pins - B12C - Duodecar 12-contact

Combination dual-control sharp-cutoff pentode and beam-power section for television FM detection and audio-frequency output amplification, with about 2.4 watts maximum-signal output.

Base

12EZ

Socket code

B12C

Sections

2

Heater

6.3 V / 1.05 A

Plate

S1: 275 V / 10 W · S2: 300 V / 1.7 W

Screen

S1: 275 V / 2 W · S2: 300 V / 1 W

rP

S1: 100,000 Ω · S2: 110,000 Ω

gm

S1: 8.5 mA/V · S2: 3.4 mA/V

12 pins - B12C - Duodecar 12-contact

Combination beam-power and sharp-cutoff pentode designed for television FM detection and audio-frequency output service, integrating detector and power-amplifier functions.

Base

12BU

Socket code

B12C

Sections

2

Heater

6.3 V / 900 mA

Plate

S1: 275 V / 10 W · S2: 30 V / 1.7 W

Screen

S1: 275 V · S2: 330 V

rP

S2: 100,000 Ω

gm

S2: 6.5 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar combination tube containing a beam-power section and sharp-cutoff pentode for television FM detection and audio-frequency output amplification.

Base

12EZ

Socket code

B12C

Sections

2

Heater

6.3 V / 1.2 A

Plate

S1: 165 V / 6.5 W · S2: 330 V / 1.7 W

Screen

S1: 150 V / 1.8 W · S2: 330 V / 1.1 W

Ik max

S1: 65 mA

rP

S1: 30,000 Ω · S2: 150,000 Ω

gm

S1: 8.6 mA/V · S2: 1 mA/V

12 pins - B12C - Duodecar 12-contact

Compactron combining a beam-power audio-output pentode with a sharp-cutoff dual-control pentode for television FM detection and audio-frequency output amplification.

Base

12BU

Socket code

B12C

Sections

2

Heater

6.3 V / 1.2 A

Plate

S1: 330 V / 1.7 W · S2: 150 V / 6.5 W

Screen

S1: 330 V / 1.1 W · S2: 135 V / 1.8 W

Ik max

S1: 10 mA · S2: 65 mA

rP

S1: 150,000 Ω · S2: 25,000 Ω

gm

S1: 1 mA/V · S2: 6 mA/V

12 pins - B12C - Duodecar 12-contact

Combination sharp-cutoff pentode and beam-power pentode designed for television FM sound detection followed by Class-A audio power amplification.

Base

12BT

Socket code

B12C

Sections

2

Heater

6.3 V / 950 mA

Plate

S1: 150 V / 10 W · S2: 275 V / 10 W

Screen

S1: 110 V / 2 W · S2: 275 V / 2 W

Ik max

S1: 13 mA · S2: 13 mA

rP

S1: 100,000 Ω · S2: 100,000 Ω

gm

S1: 6.5 mA/V · S2: 6.5 mA/V

12 pins - B12C - Duodecar 12-contact

Duodecar combination tube for FM limiting, discrimination, and audio power output in radio and television receivers, integrating signal processing with a beam-power sound-output section.

Base

EIA 12EZ

Socket code

B12C

Sections

2

Heater

6.3 V / 950 mA

Plate

S1: 275 V / 10 W · S2: 330 V / 1.7 W

Screen

S1: 275 V / 2 W · S2: 1.1 W

rP

S1: 10,000 Ω · S2: 150,000 Ω

gm

S1: 6.5 mA/V · S2: 1 mA/V

12 pins - B12C - Duodecar 12-contact

Compactron combination tube containing an audio power pentode and sharp-cutoff dual-control pentode for television FM detector and audio-output service.

Base

12BT

Socket code

B12C

Sections

2

Heater

6.3 V / 950 mA

Plate

S1: 330 V / 1.5 W · S2: 275 V / 10 W

Screen

S1: 330 V / 0.8 W · S2: 275 V / 2 W

Ik max

S1: 13 mA · S2: 55 mA

rP

S1: 250,000 Ω · S2: 100,000 Ω

gm

S1: 0.36 mA/V · S2: 6.5 mA/V

12 pins - B12C - Duodecar 12-contact

Combination tube integrating an FM discriminator or limiter function with a beam-power audio-output section for radio and television receiver service.

Base

—

Socket code

B12A

Sections

2

Plate

S1: 160 V / 2.8 W · S2: 160 V / 2.2 W

Screen

S1: 160 V / 1.25 W · S2: 160 V / 0.66 W

rP

S1: 40,000 Ω · S2: 40,000 Ω

gm

S1: 7.5 mA/V · S2: 9.6 mA/V

12 pins - B12A - Duodecal 12-contact

Duodecar two-section television video-IF tube combining a high-transconductance sharp-cutoff pentode input stage with a separate beam-power output section.