Electronic tube and vacuum tube catalog

Base

—

Socket code

B9A

Sections

2

Heater

12.6 V / 200 mA

Plate

S2: 30 V

Screen

S2: 30 V

rP

S2: 300,000 Ω

gm

S2: 1.5 mA/V

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

Low-voltage diode-pentode for automobile-radio RF or IF amplification and detection. Both sections operate effectively from the vehicle's approximately 12.6 V supply without conventional high-voltage B-plus.

Base

—

Socket code

B7G

Sections

2

Heater

1.4 V / 25 mA

Plate

S1: 50 V · S2: 90 V / 0.12 W

Screen

S2: 90 V / 0.03 W

Ik max

S1: 0.2 mA · S2: 4.5 mA

gm

S2: 0.5 mA/V

μ

S2: 300

B7G - Miniature 7-contact

Directly heated battery diode-pentode combining radio signal detection with subsequent low-frequency voltage amplification. The diode recovers the received signal while the pentode provides AF gain in economical portable receivers.

Base

—

Socket code

—

Sections

2

Heater

1.4 V / 30 mA

Plate

S1: 50 V · S2: 90 V / 0.15 W

Screen

S2: 90 V / 0.05 W

Ik max

S1: 0.2 mA · S2: 2.5 mA

gm

S2: 0.3 mA/V

Directly heated battery diode-pentode combining radio signal detection with subsequent low-frequency voltage amplification. The diode recovers the received signal while the pentode provides AF gain in economical portable receivers.

Base

6B

Socket code

B7G

Sections

2

Heater

1.25 V / 30 mA

Plate

S1: 50 V

Screen

S1: 50 V

Ik max

S1: 0.5 mA · S2: 0.25 mA

rP

S1: 2,500,000 Ω

gm

S1: 0.25 mA/V

7 pins - B7G - Miniature 7-contact

Directly heated battery diode-pentode combining radio signal detection with subsequent low-frequency voltage amplification. The diode recovers the received signal while the pentode provides AF gain in economical portable receivers.

Base

TDJ

Socket code

Refer to variations

Sections

2

Heater

1.4 V / 25 mA

Plate

S2: 90 V / 0.03 W

Screen

S2: 90 V / 0.01 W

Ik max

S1: 0.2 mA · S2: 0.25 mA

Rectifier

S1: 200 mA

gm

S2: 0.17 mA/V

7 pins

Directly heated battery diode-pentode combining radio signal detection with subsequent low-frequency voltage amplification. The diode recovers the received signal while the pentode provides AF gain in economical portable receivers.

Base

1AJ5

Socket code

—

Sections

2

Heater

1.25 V / 400 mA

Plate

S2: 90 V

Screen

S2: 90 V

rP

S2: 300,000 Ω

gm

S2: 0.425 mA/V

Directly heated diode and sharp-cutoff pentode combination designed for low-voltage Class-A amplifier service in battery-operated equipment.

Base

1AJ5

Socket code

—

Sections

2

Heater

1.25 V / 200 mA

Plate

S2: 90 V

Screen

S2: 90 V

rP

S2: 400,000 Ω

gm

S2: 0.28 mA/V

μ

S2: 10

Directly heated diode and sharp-cutoff pentode combination designed for low-voltage Class-A amplifier service in battery-operated equipment.

Base

6BW

Socket code

B7G

Sections

2

Heater

1.4 V / 50 mA

Plate

S2: 90 V

Screen

S2: 90 V

Ik max

S1: 0.25 mA · S2: 3 mA

rP

S2: 600,000 Ω

gm

S2: 0.63 mA/V

7 pins - B7G - Miniature 7-contact

Battery diode-pentode combining radio detection with remote-cutoff amplification. The diode provides signal or AVC rectification while the controlled-cutoff pentode supports gain-controlled receiver amplification in portable equipment.

Base

6AU

Socket code

B7G

Sections

2

Heater

1.4 V / 50 mA

Plate

S2: 90 V

Screen

S2: 90 V

Ik max

S1: 0.25 mA · S2: 3 mA

rP

S2: 600,000 Ω

gm

S2: 0.625 mA/V

7 pins - B7G - Miniature 7-contact

Directly heated diode-pentode combining radio detection with audio-frequency voltage amplification in battery receivers. The diode recovers the signal while the sharp-cutoff pentode supplies subsequent audio gain.

Base

6BE

Socket code

IO

Sections

2

Heater

1.4 V / 50 mA

Plate

S1: 90 V

Screen

S1: 67.5 V

rP

S1: 600,000 Ω

gm

S1: 0.65 mA/V

7 pins - IO - International Octal

GT-envelope battery diode-pentode combining detection with voltage amplification. The diode recovers the signal while the pentode supplies subsequent gain with modest operating-voltage and filament requirements.

Base

8DA

Socket code

—

Sections

2

Heater

1.25 V / 40 mA

Plate

S2: 67.5 V

Screen

S2: 67.5 V

rP

S2: 400,000 Ω

gm

S2: 0.6 mA/V

Ultra-low-power directly heated diode-pentode for detector and voltage-amplifier service in battery receivers. The diode supplies signal rectification while the pentode provides subsequent gain from very modest filament and plate supplies.

Base

6BW

Socket code

B7G

Sections

2

Heater

1.4 V / 50 mA

Plate

S1: 90 V

Screen

S1: 90 V

Ik max

S1: 3 mA · S2: 0.25 mA

rP

S1: 600,000 Ω

gm

S1: 0.625 mA/V

7 pins - B7G - Miniature 7-contact

Directly heated diode and sharp-cutoff pentode combination for detector and amplifier service in battery radios. The diode performs signal detection while the pentode provides subsequent gain with low filament consumption.

Base

—

Socket code

B7G

Sections

2

Heater

1.25 V / 50 mA

Plate

S1: 90 V · S2: 90 V / 0.17 W

Screen

S2: 67.5 V / 0.035 W

Ik max

S1: 1 mA · S2: 2.5 mA

Rectifier

S1: 1 mA

rP

S2: 650,000 Ω

gm

S2: 1.2 mA/V

7 pins - B7G - Miniature 7-contact

Ruggedized diode-pentode for detector and voltage-amplifier service in portable or specialized battery equipment. The diode supplies signal detection while the comparatively strong pentode provides subsequent gain with low filament demand.

Base

2E41

Socket code

—

Sections

2

Heater

1.25 V / 30 mA

Plate

S2: 45 V

Screen

S2: 45 V

rP

S2: 250,000 Ω

gm

S2: 0.375 mA/V

Ultra-low-power battery diode-pentode combining signal detection with voltage amplification. The diode supplies detector action while the pentode provides subsequent gain from exceptionally economical filament and plate supplies.

Base

2E41

Socket code

—

Sections

2

Heater

1.25 V / 30 mA

Plate

S2: 45 V

Screen

S2: 45 V

rP

S2: 250,000 Ω

gm

S2: 0.375 mA/V

Very-low-power battery diode-pentode for detector and amplifier service. The diode recovers the signal while the pentode supplies subsequent voltage gain from extremely modest battery-operated supplies.

Base

—

Socket code

—

Sections

2

Heater

1.4 V / 50 mA

Plate

S2: 90 V

Screen

S2: 90 V

Ik max

S2: 3 mA

rP

S2: 600,000 Ω

gm

S2: 0.625 mA/V

Receiving diode-pentode intended for radio IF amplification, detection, and control functions, with the pentode providing gain and the diode furnishing signal rectification.

Base

—

Socket code

—

Sections

2

Heater

1.4 V / 50 mA

Plate

S1: 90 V · S2: 90 V / 0.15 W

Screen

S2: 90 V / 0.05 W

Ik max

S2: 2.5 mA

rP

S2: 600,000 Ω

gm

S2: 0.7 mA/V

7 pins

Directly heated battery diode-pentode combining signal detection with low-frequency voltage amplification. Its 1.4 V, 50 mA filament suits portable receivers while the pentode provides useful gain following the detector stage.

Base

—

Socket code

WIRE8

Sections

2

Heater

1.25 V / 25 mA

Plate

S2: 90 V

Screen

S2: 90 V

Ik max

S2: 1.3 mA

rP

S2: 400,000 Ω

gm

S2: 0.04 mA/V

μ

S2: 16

8 pins - WIRE8 - Subminiature all-glass 8-wire lead family

Subminiature directly heated diode-pentode for battery equipment, combining a detector diode with an audio-frequency pentode. Its exceptionally economical 1.25 V, 25 mA filament suits compact low-power portable electronics.

Base

B7G

Socket code

B7G

Sections

2

Heater

1.4 V / 50 mA

Plate

S1: 90 V / 0.25 W

Screen

S1: 90 V / 0.06 W

Ik max

S1: 4.5 mA · S2: 0.2 mA

Rectifier

S2: 200 mA

V Inverse

S2: 100 V

rP

S1: 500,000 Ω

gm

S1: 0.72 mA/V

μ

S1: 13.5

7 pins - B7G - Miniature 7-contact

Directly heated battery diode-pentode, equivalent to 1S5, combining signal detection with audio preamplification. Its low-consumption 1.4 V, 50 mA filament and high-resistance pentode suit portable radio receivers.

Base

—

Socket code

—

Sections

2

Heater

1.2 V / 60 mA

Plate

S1: 90 V · S2: 90 V / 0.15 W

Screen

S2: 90 V / 0.05 W

Ik max

S1: 0.2 mA · S2: 2.5 mA

Rectifier

S1: 0.2 mA

V Inverse

S1: 50 V

rP

S2: 600,000 Ω

gm

S2: 0.7 mA/V

Battery-operated diode-pentode combining a detector diode with a low-frequency amplifier pentode. Its 1.2 V, 60 mA directly heated filament and low operating currents suit economical portable receiver service.

Base

NOVAL

Socket code

B9A

Sections

2

Heater

6.3 V / 200 mA

Plate

S1: 300 V / 2 W · S2: 50 V

Screen

S1: 300 V / 0.3 W

Ik max

S1: 10 mA · S2: 5 mA

Rectifier

S2: 600 mA

V Inverse

S2: 350 V

rP

S1: 1,400,000 Ω

gm

S1: 2 mA/V

μ

S1: 16

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

Diode variable-mu pentode for RF, IF, and audio-frequency amplification together with signal detection. The pentode provides controlled gain for AVC while the diode supplies the associated detector function.

Base

B7G

Socket code

B7G

Sections

2

Heater

1.4 V / 50 mA

Plate

S1: 90 V

Screen

S1: 90 V

Ik max

S1: 3 mA

rP

S1: 600,000 Ω

gm

S1: 0.63 mA/V

7 pins - B7G - Miniature 7-contact

Low-consumption directly heated diode-pentode for battery receiver detector and amplifier service, using a 1.4 V, 50 mA filament to minimize portable-equipment drain.