Electronic tube and vacuum tube catalog

Base

—

Socket code

—

Sections

2

Heater

28 V / 100 mA

Plate

S1: 250 V / 1 W

Screen

S1: 250 V / 0.5 W

gm

S1: 4 mA/V

μ

S1: 17

Combination triode-pentode developed for receiver frequency-changing and related signal-processing service. The pentode performs mixer/converter work while the separate triode supplies local oscillation in series-heater radio designs.

Base

—

Socket code

B9A

Sections

3

Heater

19 V / 100 mA

Plate

S2: 250 V / 2.25 W

Screen

S2: 250 V / 0.45 W

Ik max

S2: 16.5 mA

rP

S2: 600,000 Ω

gm

S2: 4.5 mA/V

B9A - Small-button Noval 9-contact

Combination sharp-characteristic pentode and two diodes for receiver signal amplification, detection, and control functions. The pentode provides voltage gain while the diode sections handle detector and rectification duties.

Base

9DX

Socket code

—

Sections

2

Heater

10.5 V / 450 mA

Plate

S1: 330 V / 1 W · S2: 330 V / 5 W

Screen

S2: 330 V / 1.1 W

rP

S1: 17,500 Ω · S2: 75,000 Ω

gm

S1: 4 mA/V · S2: 12.5 mA/V

μ

S1: 70 · S2: 70

9 pins

Frame-grid triode-pentode used as combined oscillator and mixer stages in VHF color and black-and-white television receivers.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Heater

1.4 V / 150 mA

Ik max

1 mA

8 pins

Low-voltage diode for signal detection and high-frequency rectification in battery-powered equipment. Its unusually high resonant frequency supports detector use well into UHF while retaining very modest current requirements.

Base

—

Socket code

—

Sections

1

Heater

12.6 V / 150 mA

Plate

330 V / 1.1 W

Screen

110 V / 1.1 W

Ik max

15.5 mA

High-frequency converter tube for oscillator and mixer service in radio receivers. Its multi-grid structure combines local-oscillator generation and frequency conversion within a single receiving tube.

Base

8-A

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

250 V

Screen

100 V

rP

600,000 Ω

gm

0.5 mA/V

8 pins - IO - International Octal

Heptode converter for superheterodyne receivers, combining local-oscillator and mixer action in one multi-grid structure. Its series-heater characteristics make it well suited to AC/DC radio receiver designs.

Base

—

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V / 1 W

Screen

300 V / 0.3 W

Ik max

14 mA

rP

650,000 Ω

gm

0.5 mA/V

8 pins - IO - International Octal

GT-envelope heptode oscillator-converter for superheterodyne receivers. Local oscillation and frequency conversion are integrated in one multi-grid structure, with heater characteristics suited to AC/DC series-string radios.

Base

B9A

Socket code

B9A

Sections

2

Heater

12.6 V / 150 mA

Plate

S1: 150 V / 0.75 W · S2: 300 V / 1.5 W

Screen

S2: 125 V / 1.25 W

Ik max

S2: 17.5 mA

rP

S1: 4,850 Ω

gm

S1: 3.5 mA/V

μ

S1: 17

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

Brimar 12AH8 indirectly heated triode-heptode radio frequency changer with common cathode, internally coupled oscillator grid, 6.3/12.6 V center-tapped heater and B9A base.

Base

E7-1

Socket code

B7G

Sections

2

Heater

12.6 V / 150 mA

Rectifier

S1: 9 mA

V Drop

S1: 10 V

V Inverse

S1: 330 V

7 pins - B7G - Miniature 7-contact

Twin-diode receiving tube for detector, discriminator, and general signal-rectification applications. Two independent diode sections make it useful for matched or complementary detection and control-voltage functions.

Base

8CT

Socket code

B9A

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V / 2 W

Screen

150 V / 0.6 W

Ik max

22 mA

rP

1,000,000 Ω

gm

0.95 mA/V

μ

165

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

Heptode oscillator-mixer for superheterodyne frequency conversion. It combines local oscillator and mixer action in one multi-grid structure with comparatively strong conversion performance for radio receiver front ends.

Base

7CH

Socket code

B7G

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V / 1 W

Screen

100 V / 1 W

Ik max

14 mA

rP

1,000,000 Ω

gm

0.475 mA/V

μ

1

7 pins - B7G - Miniature 7-contact

Heptode oscillator-converter for AC/DC superheterodyne receivers. It integrates local-oscillator and mixer functions in one miniature tube, converting incoming RF signals to the receiver intermediate frequency.

Base

8E

Socket code

Refer to variations

Sections

3

Heater

12.6 V / 150 mA

Plate

S1: 300 V

Screen

S1: 125 V

rP

S1: 600,000 Ω

gm

S1: 1.325 mA/V

8 pins

Double-diode pentode combining detector and control-voltage rectification with a separate voltage-amplifier pentode. High plate resistance and low feedback capacitance support stable receiver signal amplification.

Base

—

Socket code

IO

Sections

3

Heater

12.6 V / 150 mA

Plate

S2: 300 V / 2.25 W

Screen

S2: 125 V / 0.3 W

Ik max

S1: 1 mA

rP

S2: 600,000 Ω

gm

S2: 1.12 mA/V

8 pins - IO - International Octal

GT-envelope double-diode pentode for detector, AVC, and low-frequency voltage-amplifier functions. Two diodes perform detection and control rectification while the pentode supplies subsequent LF gain.

Base

—

Socket code

B7G

Sections

2

Heater

12.6 V / 150 mA

Plate

S2: 300 V / 2.5 W

Screen

S2: 300 V / 0.3 W

rP

S2: 800,000 Ω

gm

S2: 2.2 mA/V

7 pins - B7G - Miniature 7-contact

Combination diode-pentode for receiving-equipment detection and signal amplification. The diode provides detector or rectifying action while the pentode supplies useful voltage gain in series-heater receiver designs.

Base

J

Socket code

—

Sections

3

Heater

12.6 V / 150 mA

Plate

S1: 300 V / 3 W

Rectifier

S2: 1 mA

rP

S1: 250,000 Ω

gm

S1: 3.8 mA/V

μ

S1: 70

7 pins

Double-diode pentode combining detector functions with a comparatively strong voltage-amplifier pentode. The paired diodes provide signal or control-voltage rectification while the pentode supplies subsequent receiver gain.

Base

7FW

Socket code

B7G

Sections

2

Heater

12.6 V / 150 mA

Plate

S1: 300 V / 3 W

Screen

S1: 300 V / 0.6 W

Rectifier

S2: 1 mA

rP

S1: 250,000 Ω

gm

S1: 4.3 mA/V

7 pins - B7G - Miniature 7-contact

Remote-cutoff RF/IF pentode combined with a demodulator diode on a common cathode for receiver amplification and detection.

Base

—

Socket code

B7G

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V / 1 W

Screen

100 V / 1 W

Ik max

14 mA

7 pins - B7G - Miniature 7-contact

Heptode frequency converter for superheterodyne receiving equipment. Its multi-grid construction combines local oscillator and mixer functions, translating incoming radio-frequency signals to the receiver intermediate frequency.

Base

8BU

Socket code

IO

Sections

2

Heater

12.6 V / 150 mA

Plate

S2: 180 V

Screen

S2: 180 V

rP

S2: 160,000 Ω

gm

S2: 2.15 mA/V

8 pins - IO - International Octal

Combined detector diode and pentode designed for detector and amplifier service in receiving equipment.

Base

OCTAL

Socket code

IO

Sections

2

Heater

12.6 V / 100 mA

Plate

S1: 250 V / 2 W

Screen

S1: 250 V

Ik max

S1: 10 mA

rP

S1: 1,000,000 Ω

gm

S1: 2 mA/V

μ

S1: 18

IO - International Octal

Remote-cutoff RF pentode combined with a diode detector for receiver amplification and demodulation. The pentode provides controlled-gain RF/IF amplification while the diode supplies signal detection.

Base

8RV

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V / 1 W

Screen

100 V / 0.35 W

Ik max

6 mA

rP

800,000 Ω

gm

0.35 mA/V

8 pins - IO - International Octal

Heptode oscillator-converter for superheterodyne radio receivers. It combines local oscillation and mixing in one multi-grid tube, translating incoming RF signals to the receiver intermediate frequency.

Base

8AD

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V

Screen

100 V

rP

500,000 Ω

8 pins - IO - International Octal

GT-envelope heptode frequency converter for superheterodyne receivers. Local-oscillator and mixer functions are integrated in one tube, with heater characteristics suited to AC/DC series-string radio designs.

Base

7AZ

Socket code

—

Sections

2

Heater

12.6 V / 150 mA

Plate

S1: 300 V

Screen

S1: 150 V

rP

S1: 700,000 Ω

gm

S1: 2.05 mA/V

7 pins

Combination diode-pentode providing signal detection and voltage amplification within one receiving tube. The pentode offers useful gain and isolation while the diode supplies detector or control-voltage rectification.

Base

7AZ

Socket code

IO

Sections

3

Heater

12.6 V / 150 mA

Plate

S1: 300 V

Screen

S1: 100 V · S2: 100 V · S3: 100 V

rP

S1: 200,000 Ω

gm

S1: 1.975 mA/V

8 pins - IO - International Octal

GT-envelope pentode with two diodes for receiver amplification, detection, and control-voltage functions. The pentode supplies signal gain while paired diodes permit detector and AVC-related rectification.

Base

8RV

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V / 1 W

Screen

100 V

rP

500,000 Ω

gm

0.45 mA/V

8 pins - IO - International Octal

Triode-heptode frequency converter for superheterodyne receivers. The triode supplies local oscillation while the heptode performs mixing, integrating oscillator and frequency-changing functions within one envelope for compact radio front ends.

Base

8ADV

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

200 V / 1 W

Screen

100 V

rP

500,000 Ω

gm

0.44 mA/V

8 pins - IO - International Octal

GT-envelope heptode oscillator-converter for superheterodyne receivers. Its multi-grid structure combines local oscillation and mixing, translating incoming radio-frequency signals to the intermediate frequency while providing useful isolation between input and oscillator circuits.

Base

—

Socket code

B7

Sections

1

Heater

13 V / 200 mA

Plate

250 V

Screen

100 V

B7 - Medium 7-contact

Variable-mu heptode frequency changer for superheterodyne receivers. Its multi-grid construction combines oscillator and mixer action, translating incoming RF signals to the receiver intermediate frequency while permitting gain control in the converter stage.

Base

8X

Socket code

IO

Sections

1

Heater

12.6 V / 150 mA

Plate

300 V

Screen

100 V

rP

360,000 Ω

gm

0.55 mA/V

8 pins - IO - International Octal

Heptode oscillator-converter for superheterodyne radio reception. Its multi-grid structure combines local-oscillator and mixer functions in one tube, translating incoming RF signals to intermediate frequency in series-heater receiver designs.

Base

8AE

Socket code

LOCTAL8

Sections

3

Heater

12.6 V / 150 mA

Plate

S2: 300 V

Screen

S2: 100 V

rP

S2: 700,000 Ω

gm

S2: 1.3 mA/V

8 pins - LOCTAL8 - Loctal 8-contact base

Double-diode remote-cutoff pentode combining receiver detection, AVC, and signal amplification. The two diodes provide signal and control-voltage rectification while the pentode supplies useful voltage gain for RF, IF, or audio-frequency service.

Base

8ALT

Socket code

LOCTAL8

Sections

1

Heater

14 V / 160 mA

Plate

200 V / 1 W

Screen

100 V / 1 W

Ik max

14 mA

rP

1,000,000 Ω

8 pins - LOCTAL8 - Loctal 8-contact base

Heptode oscillator-converter for superheterodyne receiving equipment. Its multi-grid structure combines local oscillation and mixing in one valve, translating incoming radio-frequency signals to intermediate frequency while maintaining useful isolation between converter circuits.

Base

8AE

Socket code

B8G

Sections

3

Heater

12.6 V / 150 mA

Plate

S2: 250 V / 2 W

Screen

S2: 125 V / 0.25 W

Ik max

S1: 1 mA · S3: 1 mA

rP

S2: 1,000,000 Ω

gm

S2: 3.2 mA/V

8 pins - B8G - Loctal 8-contact

Double-diode pentode combining detector, AVC, and signal-amplifier functions. The two diode plates perform detection and control-voltage rectification while the pentode supplies high-resistance voltage amplification for compact receiver signal chains.

Base

9Q

Socket code

B9A

Sections

2

Heater

14 V / 100 mA

Plate

S1: 175 V / 0.8 W · S2: 250 V / 1.5 W

Screen

S2: 0.3 W

Ik max

S1: 6 mA · S2: 10 mA

gm

S1: 2.8 mA/V

μ

S1: 22

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

Rogers 14Y7 triode-hexode radio frequency converter with shared cathode and internally coupled oscillator grid, 14 V 0.1 A heater, and 9Q nine-pin base.

Base

5F

Socket code

UX5

Sections

1

Heater

2 V / 220 mA

Plate

135 V

Screen

67.5 V

rP

800,000 Ω

gm

0.75 mA/V

μ

600

5 pins - UX5 - Small 5-contact

Two-volt battery pentode for high-frequency amplification, detection, and converter service in portable radio receivers. Its low-power filament suits battery operation, while high plate resistance provides useful gain in RF, detector, or superheterodyne frequency-changing circuits.

Base

—

Socket code

IO

Sections

1

Heater

4 V / 650 mA

rP

360,000 Ω

8 pins - IO - International Octal

Heptode frequency changer for superheterodyne radio receivers, combining oscillator and mixer action within one multi-grid valve. Manufacturer data specify its conversion characteristics and operating conditions for dedicated receiver frequency-changing service.

Base

—

Socket code

IO

Sections

1

Heater

13 V / 200 mA

Plate

250 V

Screen

100 V

rP

360,000 Ω

8 pins - IO - International Octal

Heptode frequency changer for superheterodyne receiver service. Its multi-grid structure integrates local oscillation and mixing, converting incoming radio-frequency signals to the receiver intermediate frequency within a single valve.

Base

—

Socket code

IO

Sections

1

Heater

13 V / 150 mA

Plate

250 V

Screen

100 V

rP

360,000 Ω

8 pins - IO - International Octal

Heptode oscillator-converter for superheterodyne radio receivers, combining local oscillation and frequency conversion within one valve. Its series-heater design suits compact AC/DC receiving equipment requiring an integrated frequency-changing stage.

Base

7T

Socket code

—

Sections

1

Heater

6.3 V / 300 mA

Plate

250 V / 1.5 W

Screen

100 V / 1 W

rP

600,000 Ω

gm

1.1 mA/V

7 pins

Low-microphonics industrial pentagrid amplifier-modulator equivalent to the 6L7, intended for radio mixing, modulation, and controlled RF amplification.

Base

10F

Socket code

B10B

Sections

2

Heater

16.8 V / 150 mA

Plate

S1: 250 V / 1.5 W · S2: 250 V / 1.5 W

Screen

S1: 180 V / 0.5 W · S2: 180 V / 0.5 W

Ik max

S1: 20 mA · S2: 20 mA

rP

S1: 100,000 Ω · S2: 100,000 Ω

gm

S1: 8 mA/V · S2: 8 mA/V

10 pins - B10B - Decal 10-contact

Sharp-cutoff dual tetrode designed for VHF RF-amplifier and autodyne mixer service in receiver front ends.

Base

7CH

Socket code

B7G

Sections

1

Heater

18 V / 100 mA

Plate

150 V / 1 W

Screen

110 V / 1.2 W

rP

400,000 Ω

gm

7 mA/V

μ

22

7 pins - B7G - Miniature 7-contact

Miniature dual-control heptode converter for combined mixer and local-oscillator service in superheterodyne receivers. Its multi-grid structure provides useful isolation between RF input, oscillator, and converted-signal circuits in low-current series-heater radio designs.

Base

—

Socket code

B7G

Sections

1

Heater

18 V / 100 mA

Plate

150 V / 1 W

Screen

110 V / 1.2 W

Ik max

24 mA

rP

400,000 Ω

gm

0.48 mA/V

μ

22

7 pins - B7G - Miniature 7-contact

Miniature heptode frequency converter combining oscillator and mixer functions in one tube. Electrically related to the 18FX6 but with controlled heater characteristics, it is designed for low-current series-heater superheterodyne receivers.

Base

9FX

Socket code

B9A

Sections

2

Heater

18.9 V / 150 mA

Plate

S1: 250 V / 2.7 W · S2: 250 V / 2.8 W

Screen

S2: 150 V / 0.55 W

Ik max

S1: 25 mA · S2: 25 mA

rP

S1: 5,000 Ω · S2: 100,000 Ω

gm

S1: 8 mA/V · S2: 6.4 mA/V

μ

S1: 40

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

Triode-tetrode used as an FM converter and RF amplifier in radio receivers.

Base

9AE

Socket code

B9A

Sections

2

Heater

18.9 V / 150 mA

Plate

S1: 330 V / 3 W · S2: 330 V / 3.1 W

Screen

S2: 330 V / 0.55 W

Ik max

S1: 25 mA · S2: 25 mA

rP

S1: 5,000 Ω · S2: 80,000 Ω

gm

S1: 8.5 mA/V · S2: 6.4 mA/V

μ

S1: 40

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

Medium-mu triode and sharp-cutoff pentode used together as a television oscillator and mixer.

Base

9FA

Socket code

B9A

Sections

2

Heater

18.9 V / 150 mA

Plate

S1: 300 V / 2.5 W · S2: 300 V / 2.5 W

Screen

S1: 300 V / 0.55 W

rP

S1: 200,000 Ω · S2: 5,400 Ω

gm

S1: 7.5 mA/V · S2: 8.5 mA/V

μ

S2: 46

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

Medium-mu triode and sharp-cutoff pentode used as an FM converter and RF amplifier in radio receivers.

Base

9LY

Socket code

B9A

Sections

2

Heater

18.9 V / 150 mA

Plate

S1: 300 V / 2.5 W · S2: 300 V / 2.5 W

Screen

S1: 0.55 W

rP

S1: 200,000 Ω · S2: 5,400 Ω

gm

S1: 7.5 mA/V · S2: 8.5 mA/V

μ

S2: 46

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

Triode-pentode designed for combined oscillator and mixer service in receiving equipment.

Base

9AK

Socket code

B9A

Sections

2

Heater

18.9 V / 150 mA

Plate

S1: 250 V / 2.3 W · S2: 250 V / 1.7 W

Screen

S1: 250 V / 0.45 W

rP

S1: 750,000 Ω · S2: 6,900 Ω

gm

S1: 4.6 mA/V · S2: 5.8 mA/V

μ

S2: 40

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

Medium-mu triode and sharp-cutoff pentode used as a combined oscillator and mixer in television and AM/FM receivers.

Base

—

Socket code

B7G

Sections

1

Heater

1.2 V / 60 mA

Plate

100 V

Screen

75 V

Ik max

6.5 mA

7 pins - B7G - Miniature 7-contact

Battery or receiving-tube frequency converter combining local-oscillator and mixer action for superheterodyne radio service. Its multi-grid structure provides frequency conversion while minimizing component count and, in battery types, filament power.

Base

—

Socket code

B7G

Sections

1

Heater

1.2 V / 30 mA

Plate

90 V / 0.3 W

Screen

75 V

Ik max

3 mA

7 pins - B7G - Miniature 7-contact

Battery or receiving-tube frequency converter combining local-oscillator and mixer action for superheterodyne radio service. Its multi-grid structure provides frequency conversion while minimizing component count and, in battery types, filament power.

Base

6L

Socket code

UX6

Sections

1

Heater

2 V / 60 mA

Plate

180 V

Screen

67.5 V

Ik max

9 mA

rP

500,000 Ω

gm

0.3 mA/V

6 pins - UX6 - Small 6-contact

Battery or receiving-tube frequency converter combining local-oscillator and mixer action for superheterodyne radio service. Its multi-grid structure provides frequency conversion while minimizing component count and, in battery types, filament power.

Base

7Z

Socket code

IO

Sections

1

Heater

1.4 V / 50 mA

Plate

110 V

Screen

60 V

Ik max

4 mA

rP

600,000 Ω

gm

0.25 mA/V

8 pins - IO - International Octal

Battery or receiving-tube frequency converter combining local-oscillator and mixer action for superheterodyne radio service. Its multi-grid structure provides frequency conversion while minimizing component count and, in battery types, filament power.

Base

7Z

Socket code

IO

Sections

1

Heater

1.4 V / 50 mA

Plate

110 V

Screen

60 V

Ik max

4 mA

rP

600,000 Ω

gm

0.25 mA/V

8 pins - IO - International Octal

Battery or receiving-tube frequency converter combining local-oscillator and mixer action for superheterodyne radio service. Its multi-grid structure provides frequency conversion while minimizing component count and, in battery types, filament power.

Base

7Z

Socket code

IO

Sections

1

Heater

1.4 V / 100 mA

Plate

100 V

Screen

55 V

Ik max

6 mA

rP

350,000 Ω

gm

0.35 mA/V

8 pins - IO - International Octal

Battery or receiving-tube frequency converter combining local-oscillator and mixer action for superheterodyne radio service. Its multi-grid structure provides frequency conversion while minimizing component count and, in battery types, filament power.