Electronic tube and vacuum tube catalog

Base

12EY

Socket code

B12C

Sections

1

Heater

10.5 V / 600 mA

Plate

400 V / 19 W

Screen

300 V / 2.75 W

Ik max

110 mA

rP

12,000 Ω

gm

10.3 mA/V

12 pins - B12C - Duodecar 12-contact

Beam-power output tube designed for audio-frequency power amplification in television receivers, with series-string heater characteristics suited to transformerless consumer equipment.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Specialized beam-power valve for high-voltage pulse and modulation service, featuring low interelectrode capacitance and kilovolt-class series-modulation standoff rather than ordinary receiver output duty.

Base

—

Socket code

—

Sections

1

Heater

4.2 V / 2.5 A

Plate

3,500 V / 10 W

Screen

700 V / 2 W

Ik max

2.5 A

7 pins

Industrial beam-power modulator valve designed for series and break-modulator pulse service, with kilovolt quiescent operation and peak anode-voltage capability exceeding 12 kV.

Base

9EU

Socket code

B9A

Sections

1

Heater

12.6 V / 200 mA

Plate

315 V / 12 W

Screen

285 V / 2 W

rP

50,000 Ω

gm

4 mA/V

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

Miniature beam-power tube intended for audio-frequency output service in television and radio receivers, providing several watts of Class-A power from a compact envelope.

Base

7CV

Socket code

B7G

Sections

1

Heater

12.6 V / 600 mA

Plate

315 V / 10 W

Screen

117 V / 2.2 W

rP

73,000 Ω

gm

4.8 mA/V

7 pins - B7G - Miniature 7-contact

Miniature beam-power tube for Class-A audio output service in consumer receivers, designed for substantial current at relatively low plate and screen voltages.

Base

9HN

Socket code

B9A

Sections

1

Heater

12.6 V / 600 mA

Plate

250 V / 20 W

Screen

250 V / 2 W

Ik max

55 mA

gm

6.2 mA/V

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

Beam-power tube intended for television and audio-frequency power-output applications, providing a compact output stage where moderate power and beam construction are useful.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 1.6 A

Plate

800 V / 35 W

Screen

200 V / 5 W

Ik max

300 mA

gm

14 mA/V

8 pins - IO - International Octal

Industrial beam tetrode from the Ediswan/Mazda family, intended for demanding electronic power and control applications with substantial plate-dissipation capability.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 1.6 A

Plate

600 V / 35 W

Screen

600 V / 6 W

Ik max

175 mA

rP

12,000 Ω

gm

11 mA/V

8 pins - IO - International Octal

Industrial beam tetrode designed for series- or parallel-regulator service in stabilized power supplies and also usable as a high-power AF output tube, with pairs delivering up to about 100 W continuously.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 1.6 A

Plate

800 V / 35 W

Screen

300 V / 5 W

Ik max

300 mA

8 pins - IO - International Octal

Industrial beam tetrode with 35-watt maximum anode dissipation, designed for stabilized power-supply applications and electronic control service.

Base

—

Socket code

B7G

Sections

1

Heater

12.6 V / 450 mA

Plate

330 V / 12 W

Screen

250 V / 2.5 W

rP

7,500 Ω

gm

17 mA/V

μ

13

9 pins - B7G - Miniature 7-contact

High-perveance beam-power audio-output pentode with high power sensitivity, capable of Class-A service and substantially greater output in push-pull Class-AB operation.

Base

7AC

Socket code

IO

Sections

1

Heater

12.6 V / 600 mA

Plate

200 V / 10 W

Screen

125 V / 1.25 W

rP

28,000 Ω

gm

8 mA/V

8 pins - IO - International Octal

Beam pentode for 600 mA series-heater receivers, designed as a sensitive output tube capable of useful audio power from relatively low supply voltage.

Base

7AC

Socket code

IO

Sections

1

Heater

12.6 V / 225 mA

Plate

350 V / 14 W

Screen

315 V / 2.2 W

Ik max

50 mA

rP

50,000 Ω

gm

4.1 mA/V

8 pins - IO - International Octal

Beam-power output tube designed for automobile, battery-operated, and conventional radio receivers, with documented Class-A and push-pull audio power operation.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Heater

26 V / 1.3 A

Plate

800 V / 90 W

Screen

300 V / 10 W

Ik max

800 mA

rP

130 Ω

gm

35 mA/V

μ

4.5

7 pins

Low-impedance industrial beam tetrode with center-tapped heater, designed for general DC control applications and capable of triode-connected operation with high anode dissipation.

Base

—

Socket code

—

Sections

1

Heater

26 V / 1.3 A

Plate

800 V / 90 W

Screen

300 V / 10 W

Ik max

800 mA

rP

110 Ω

gm

25 mA/V

μ

2.8

7 pins

Industrial beam tetrode with center-tapped heater intended for stabilized power supplies, servo mechanisms, and related electronic control applications.

Base

—

Socket code

IO

Sections

1

Heater

13 V / 750 mA

Plate

250 V / 6 W

gm

7.5 mA/V

8 pins - IO - International Octal

Beam tetrode documented in bilingual Russian technical literature; available source establishes its tetrode construction but does not clearly support a narrower functional application.

Base

6AA

Socket code

LOCTAL8

Sections

1

Heater

12.6 V / 225 mA

Plate

315 V / 12 W

Screen

285 V / 2 W

rP

77,000 Ω

gm

3.75 mA/V

8 pins - LOCTAL8 - Loctal 8-contact base

Series-heater beam-power output pentode corresponding to the 7C5 family, designed for receiver output stages with high power sensitivity at comparatively low supply voltage.

Base

—

Socket code

B7G

Sections

1

Heater

6.3 V / 900 mA

Plate

450 V / 21 W

Screen

250 V / 3.5 W

gm

6.06 mA/V

7 pins - B7G - Miniature 7-contact

Beam-power transmitting tube for audio- and radio-frequency power service, including communications and emergency broadcast applications, with substantial Class-C output capability.

Base

—

Socket code

B9A

Sections

1

Heater

2.5 V / 2 A

Plate

400 V / 15 W

Screen

300 V / 3.5 W

gm

4.5 mA/V

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

Quick-heating beam-power transmitting tube for RF amplification, modulation, and audio power service, with published Class-A, Class-AB2, and Class-C operating conditions.

Base

7AC

Socket code

B9A

Sections

1

Heater

6.3 V / 900 mA

Plate

300 V / 13.8 W

Screen

250 V / 1.4 W

rP

4,000 Ω

gm

4 mA/V

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

6L6-related octal beam-power output tube documented for push-pull Class-A1 audio service, producing about 10 watts from two tubes at the published operating point.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Heater

2.5 V / 2 A

Plate

600 V / 25 W

Screen

300 V / 3.5 W

gm

4 mA/V

Filamentary-cathode beam-power transmitting tube with high power sensitivity, designed for radio-frequency service and push-pull audio power amplification.

Base

—

Socket code

U7B

Sections

1

Heater

12.6 V / 450 mA

Plate

750 V / 30 W

Screen

250 V / 3.5 W

μ

8

U7B - Medium 7-contact

Beam-power transmitting tube intended for RF power amplification and oscillator service, also capable of high-power push-pull Class-AB audio operation.

Base

7AC

Socket code

B9A

Sections

1

Heater

12.6 V / 450 mA

Plate

360 V / 16 W

Screen

270 V / 2.5 W

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

6L6-related beam-power output tube with a 12.6-volt heater, documented for push-pull Class-AB1 audio service with roughly 18 to 26.5 watts output.

Base

7BZ

Socket code

B8G

Sections

1

Heater

18.9 V / 150 mA

Plate

250 V / 12 W

Screen

200 V / 2 W

rP

52,000 Ω

gm

4.1 mA/V

7 pins - B8G - Loctal 8-contact

19-volt-heater miniature output beam tetrode documented for Class-A power amplification, with operating points providing approximately two to 4.5 watts output.

Base

—

Socket code

IO

Sections

1

Heater

1.4 V / 100 mA

Plate

110 V

Screen

110 V

Ik max

12 mA

gm

2.2 mA/V

7 pins - IO - International Octal

Low-drain battery beam-power amplifier designed for portable audio-output service, with published output around a quarter watt under typical operating conditions.

Base

6AF

Socket code

IO

Sections

1

Heater

1.4 V / 100 mA

Plate

110 V

Screen

110 V

Ik max

12 mA

rP

90,000 Ω

gm

2.2 mA/V

7 pins - IO - International Octal

Beam-power output tube for low-voltage battery-operated audio amplifiers, delivering roughly a quarter watt in typical Class-A operation.

Base

6X

Socket code

IO

Sections

1

Heater

1.4 V / 50 mA

Plate

110 V

Screen

110 V

Ik max

7.3 mA

rP

250,000 Ω

gm

1.15 mA/V

7 pins - IO - International Octal

Beam-power amplifier designed for low-voltage battery-operated audio-output service, with published Class-A operation producing approximately 0.17 watt.

Base

9QU

Socket code

B9E

Sections

1

Heater

22 V / 450 mA

Plate

900 V / 28 W

Screen

220 V / 2 W

Ik max

950 mA

rP

6,000 Ω

gm

9.5 mA/V

μ

4

9 pins - B9E - Novar 9-contact

High-dissipation beam-power tube designed for high-voltage pulse and shunt-regulator applications in color television receivers.

Base

7AC

Socket code

—

Sections

1

Heater

25 V / 300 mA

Plate

200 V / 12.5 W

Screen

135 V / 1.75 W

rP

18,300 Ω

gm

7.1 mA/V

7 pins

Beam-power amplifier designed for relatively low-voltage output service, with a 12.5-watt plate-dissipation rating and published Class-A operation.

Base

—

Socket code

IO

Sections

1

Heater

25 V / 300 mA

Plate

200 V / 12.5 W

Screen

200 V / 1.75 W

rP

18,300 Ω

gm

7.1 mA/V

7 pins - IO - International Octal

High-sensitivity beam-power amplifier designed to obtain substantial output from comparatively low DC supply voltages, electrically related to the 50C6GA apart from heater ratings.

Base

7AC

Socket code

IO

Sections

1

Heater

25 V / 300 mA

Plate

200 V

Screen

117 V

rP

30,000 Ω

gm

9.5 mA/V

μ

82

IO - International Octal

Beam-power output tube designed for low-voltage Class-A audio amplifier service in AC/DC receiving equipment.

Base

—

Socket code

IO

Sections

1

Heater

25 V / 300 mA

Plate

110 V

Screen

110 V

rP

10,000 Ω

gm

8.2 mA/V

μ

82

IO - International Octal

Beam-power output tube for low-voltage AC/DC audio amplifier service, intended to provide Class-A power output in transformerless receiving equipment.

Base

B7-7

Socket code

IO

Sections

1

Heater

25 V / 300 mA

Plate

200 V / 10 W

Screen

125 V / 1.25 W

rP

28,000 Ω

gm

8 mA/V

7 pins - IO - International Octal

Glass-octal beam-power output tube for AC/DC radio receivers, explicitly related to the 50L6GT except for heater ratings.

Base

—

Socket code

IO

Sections

1

Heater

25 V / 300 mA

Plate

200 V

Screen

110 V

rP

30,000 Ω

gm

9.5 mA/V

8 pins - IO - International Octal

Output beam tetrode designed for AC/DC audio equipment, providing power amplification in series-heater receiving and amplifier circuits.

Base

75

Socket code

IO

Sections

1

Heater

26.5 V / 300 mA

Plate

200 V / 12.5 W

Screen

136 V / 1.5 W

rP

18,000 Ω

gm

7.1 mA/V

8 pins - IO - International Octal

Ruggedized beam-power amplifier designed for military service where resistance to shock and vibration is required.

Base

75

Socket code

IO

Sections

1

Heater

26.5 V / 300 mA

Plate

220 V / 12.5 W

Screen

150 V / 1.75 W

rP

18,000 Ω

gm

7.1 mA/V

8 pins - IO - International Octal

Ruggedized premium beam-power pentode for approximately five-watt single-ended audio output from 26-volt supplies common in airborne equipment.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 900 mA

Plate

600 V / 25 W

Screen

300 V / 3.5 W

gm

6 mA/V

Beam-power transmitting tetrode for driver and RF power-amplifier service to about 60 MHz; triode-connected data also support Class-AB audio power-amplifier and modulator operation.

Base

—

Socket code

B7G

Sections

1

Heater

6.3 V / 650 mA

Plate

600 V / 13.5 W

Screen

200 V

Ik max

85 mA

gm

3.2 mA/V

μ

7.5

7 pins - B7G - Miniature 7-contact

Beam-power transmitting tube intended for RF driver and power-amplifier service, providing substantial plate dissipation and output capability for communications and transmitter equipment.

Base

—

Socket code

IO

Sections

1

Heater

6 V / 1 A

Plate

450 V / 15 W

Screen

250 V / 5 W

gm

2.5 mA/V

μ

6

8 pins - IO - International Octal

Beam-power transmitting tetrode designed for RF power amplification and driver service, with ratings suited to communications transmitters and other high-frequency power applications.

Base

—

Socket code

—

Sections

1

Heater

6 V / 700 mA

Plate

450 V / 15 W

Screen

250 V / 5 W

gm

2.5 mA/V

μ

6

7 pins

Improved beam-power transmitting tetrode for RF driver and power-amplifier service, intended for dependable high-frequency output operation in communications equipment.

Base

Refer to variations

Socket code

B7G

Sections

1

Heater

6.3 V / 800 mA

Plate

600 V / 13.5 W

Screen

200 V

Ik max

75 mA

gm

3.5 mA/V

μ

6.5

7 pins - B7G - Miniature 7-contact

Beam-power transmitting tube intended for RF power-amplifier and driver applications, combining useful high-frequency capability with substantial plate-power handling.

Base

7CQ

Socket code

B7G

Sections

1

Heater

6 V / 650 mA

Plate

250 V / 10 W

Screen

250 V / 2.5 W

Ik max

60 mA

rP

63,000 Ω

gm

3.7 mA/V

7 pins - B7G - Miniature 7-contact

Beam-power transmitting tetrode for communications and RF power service, designed to provide useful transmitter output at high frequencies.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 1.6 A

Plate

360 V / 27 W

Screen

270 V / 4 W

Ik max

125 mA

rP

37,500 Ω

gm

8.3 mA/V

7 pins - IO - International Octal

Beam-power output tube intended for substantial audio-frequency power amplification and general power service, with ratings suited to professional or receiver applications.

Base

—

Socket code

—

Sections

1

Heater

35 V / 150 mA

Plate

110 V

Screen

110 V

rP

14,000 Ω

gm

5.8 mA/V

Long-life or controlled-heater variant of the 35A5 beam-power audio-output family, intended for series-string receiver power-amplifier service.

Base

—

Socket code

—

Sections

1

Heater

35 V / 150 mA

Plate

315 V / 12 W

Screen

250 V

gm

4.1 mA/V

150 mA series-heater beam-power tube designed for audio-frequency output stages in transformerless and other series-string receiver equipment.

Base

7AQ

Socket code

—

Sections

1

Heater

2.8 V / 220 mA

Plate

67.5 V

Screen

67.5 V

Ik max

12 mA

rP

100,000 Ω

gm

1.65 mA/V

8 pins

Low-voltage beam-power amplifier with a 1.4-volt filament, intended for battery-operated receiver power-output service.

Base

—

Socket code

—

Sections

1

Heater

12.6 V / 850 mA

Plate

3,500 V / 15 W

Screen

850 V / 3 W

gm

0.55 mA/V

8 pins

CBS-Hytron 3D21A high-vacuum blocking-oscillator and pulse-modulator tube with 6.3/12.6 V series-parallel heater, 3500 V plate rating and 7–21 kW typical pulse output.

Base

—

Socket code

—

Sections

1

Heater

12.6 V / 850 mA

Plate

3,500 V / 15 W

Screen

850 V / 3 W

gm

0.55 mA/V

8 pins

CBS-Hytron 3D21B high-vacuum blocking-oscillator and pulse-modulator tube with 6.3/12.6 V series-parallel heater, 3500 V plate rating and 7–21 kW typical pulse output.

Base

—

Socket code

—

Sections

1

Heater

12.6 V / 850 mA

Plate

4,000 V / 40 W

Screen

850 V / 3.5 W

Ik max

175 mA

6 pins

Rugged reliable pulse beam-power tetrode for high-voltage, high-current pulse service in modulators, deflection amplifiers, oscillators, and regulated power supplies.

Base

6BX

Socket code

B7G

Sections

1

Heater

2.8 V / 50 mA

Plate

135 V

Screen

90 V

rP

100,000 Ω

gm

1.55 mA/V

7 pins - B7G - Miniature 7-contact

Directly heated beam-power amplifier with series/parallel filament operation, intended for low-voltage battery receiver power-output service.

Base

6BB

Socket code

B7G

Sections

1

Heater

2.8 V / 50 mA

Plate

110 V

Screen

110 V

rP

80,000 Ω

gm

2 mA/V

7 pins - B7G - Miniature 7-contact

Directly heated beam-power amplifier with series/parallel filament operation, designed for battery-operated receiver power-output applications.