Electronic tube and vacuum tube catalog

Base

—

Socket code

B10B

Sections

2

Heater

15 V / 150 mA

Plate

S1: 250 V / 2 W · S2: 250 V / 2 W

Screen

S1: 180 V / 0.5 W · S2: 180 V / 0.5 W

Ik max

S1: 20 mA · S2: 20 mA

rP

S1: 110,000 Ω · S2: 110,000 Ω

gm

S1: 10 mA/V · S2: 10 mA/V

10 pins - B10B - Decal 10-contact

Twin tetrode designed for VHF RF amplification and autodyne mixer service, a heater-variant member of a television/radio front-end converter family.

Base

—

Socket code

B10B

Sections

2

Heater

16.8 V / 150 mA

Plate

S1: 250 V / 2 W · S2: 250 V / 2 W

Screen

S1: 180 V / 0.5 W · S2: 180 V / 0.5 W

Ik max

S1: 20 mA · S2: 20 mA

rP

S1: 110,000 Ω · S2: 110,000 Ω

gm

S1: 10 mA/V · S2: 10 mA/V

10 pins - B10B - Decal 10-contact

Twin tetrode designed for VHF RF amplification and autodyne mixer service, a heater-variant member of a television/radio front-end converter family.

Base

—

Socket code

—

Sections

2

Heater

2 V / 55 mA

μ

S1: 1.3 · S2: 1.3

Directly heated dual electrometric tetrode for low-current measuring devices.

Base

—

Socket code

—

Sections

2

Heater

6.3 V / 400 mA

Plate

S1: 250 V / 3 W · S2: 250 V / 3 W

Screen

S1: 165 V / 1.5 W · S2: 165 V / 1.5 W

rP

S1: 60,000 Ω · S2: 60,000 Ω

gm

S1: 5.8 mA/V · S2: 5.8 mA/V

Base

—

Socket code

SUBMINIATURE8

Sections

2

Heater

1.25 V / 200 mA

Plate

S1: 150 V / 0.96 W · S2: 150 V / 0.96 W

Screen

S1: 50 V · S2: 50 V

Ik max

S1: 15 mA · S2: 15 mA

gm

S1: 1.7 mA/V · S2: 1.7 mA/V

8 pins - SUBMINIATURE8 - Subminiature 8-lead base

Directly heated subminiature double tetrode designed for push-pull Class-C RF power-amplifier service at VHF frequencies.

Base

—

Socket code

B9A

Sections

2

Heater

3 V / 50 mA

Plate

S1: 9 V · S2: 9 V

gm

S1: 0.02 mA/V · S2: 0.02 mA/V

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

Directly heated dual space-charge tetrode electrometer tube designed for highly stable bridge circuits measuring extremely small currents and voltages.

Base

—

Socket code

B9A

Sections

2

Heater

6.3 V / 600 mA

Plate

S1: 250 V / 5.5 W · S2: 250 V / 5.5 W

Screen

S1: 200 V / 1.5 W · S2: 200 V / 1.5 W

Ik max

S1: 40 mA · S2: 40 mA

μ

S1: 31 · S2: 31

B9A - Small-button Noval 9-contact

Miniature frame-grid twin tetrode designed for compact RF power equipment, with useful output and full-input operation extending to approximately 400 MHz.

Base

8BV

Socket code

LOCTAL8

Sections

2

Heater

7 V / 320 mA

Plate

S1: 300 V / 1.5 W · S2: 300 V / 1.5 W

Screen

S1: 100 V / 0.1 W · S2: 100 V / 0.1 W

rP

S1: 225,000 Ω · S2: 225,000 Ω

gm

S1: 2.1 mA/V · S2: 2.1 mA/V

8 pins - LOCTAL8 - Loctal 8-contact base

Sharp-cutoff double tetrode with common cathode and screen, intended for general amplifier service.

Base

Refer to variations

Socket code

Refer to variations

Sections

2

Heater

11 V / 3.1 A

Plate

S1: 300 V / 4 W · S2: 300 V / 4 W

Screen

S1: 200 V / 2.5 W · S2: 200 V / 2.5 W

Ik max

S1: 45 mA · S2: 45 mA

gm

S1: 7 mA/V · S2: 7 mA/V

μ

S1: 26 · S2: 26

9 pins

Quick-heating internally neutralized twin tetrode designed for RF power amplification and frequency multiplication in mobile or fixed equipment to approximately 500 MHz.

Base

—

Socket code

B9A

Sections

2

Heater

6.75 V / 760 mA

gm

S1: 3.3 mA/V · S2: 3.3 mA/V

μ

S1: 7.5 · S2: 7.5

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

Twin tetrode designed for Class-C RF amplifier, oscillator, frequency-multiplier, and modulator service to approximately 200 MHz.

Base

—

Socket code

B9A

Sections

2

Heater

6.75 V / 760 mA

Plate

S1: 450 V / 10 W · S2: 450 V / 10 W

Screen

S1: 200 V / 1 W · S2: 200 V / 1 W

Ik max

S1: 110 mA

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

Single-ended twin tetrode designed for mobile Class-C RF amplification, oscillation, and frequency multiplication to approximately 200 MHz.

Base

—

Socket code

—

Sections

2

Raytheon subminiature double tetrode designed for RF power-amplifier service, providing two power sections for compact transmitting equipment.

Base

—

Socket code

—

Sections

2

Heater

1.25 V / 10 mA

Directly heated subminiature double tetrode designed for electrometer service, with nominal control-grid current around 10^-14 ampere.

Base

8CB

Socket code

—

Sections

2

Heater

1.25 V / 200 mA

Plate

S1: 135 V · S2: 135 V

Screen

S1: 45 V · S2: 45 V

gm

S1: 1.7 mA/V · S2: 1.7 mA/V

8 pins

Directly heated subminiature twin tetrode designed for RF power-amplifier service in compact electronic equipment.

Base

—

Socket code

—

Sections

2

Heater

2 V

gm

S1: 0.03 mA/V · S2: 0.03 mA/V

Double electrometer tetrode designed for precision measurement of extremely small electrical currents and voltages.

Base

—

Socket code

SIDE8

Sections

2

Heater

75 mA

8 pins - SIDE8 - European side-contact 8-contact base

Russian dual tetrode documented in technical reference literature; available source does not clearly establish a narrower specialized functional role.

Base

—

Socket code

—

Sections

2

Heater

12.6 V / 1.1 A

Plate

S1: 4,000 V · S2: 4,000 V

Screen

S1: 800 V · S2: 800 V

Ik max

S1: 15 A

Russian double tetrode designed for pulse modulators in RF equipment, with high peak-current capability in each power section.

Base

Refer to variations

Socket code

B9A

Sections

2

Heater

6.3 V / 600 mA

Plate

S1: 250 V · S2: 250 V

Screen

S1: 200 V · S2: 200 V

gm

S1: 10.5 mA/V · S2: 10.5 mA/V

μ

S1: 31 · S2: 31

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

Internally neutralized double tetrode designed for RF amplification, oscillation, and frequency multiplication.

Base

—

Socket code

—

Sections

2

Heater

12.6 V / 650 mA

Plate

S1: 600 V · S2: 600 V

gm

S1: 2.5 mA/V · S2: 2.5 mA/V

Radiation-cooled dual transmitting tetrode designed for frequency multiplication and audio-frequency amplification, explicitly equivalent to SRS4452 and 6252.

Base

—

Socket code

B7A

Sections

2

Heater

6.3 V / 1.8 A

Plate

S1: 600 V · S2: 600 V

Screen

S1: 300 V · S2: 300 V

B7A - Septar 7-contact

Internally neutralized double tetrode designed for HF amplification, oscillation, frequency multiplication, and modulation.

Base

—

Socket code

—

Sections

2

Heater

6.3 V / 600 mA

Plate

S1: 250 V / 3 W · S2: 250 V / 3 W

Screen

S1: 200 V / 1.5 W · S2: 200 V / 1.5 W

Ik max

S1: 45 mA · S2: 45 mA

gm

S1: 10.5 mA/V · S2: 10.5 mA/V

RF power double tetrode designed for amplification or frequency multiplication to approximately 500 MHz.

Base

—

Socket code

—

Sections

2

Heater

12.6 V / 1.2 A

Plate

S1: 15 W · S2: 15 W

gm

S1: 8.5 mA/V · S2: 8.5 mA/V

Double tetrode pulse modulator designed for approximately 5 kV and 10 A pulsed service in high-power electronic equipment.

Base

Refer to variations

Socket code

B9A

Sections

2

Heater

11 V / 3.1 A

Plate

S1: 300 V / 4 W · S2: 300 V / 4 W

gm

S1: 7 mA/V · S2: 7 mA/V

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

Quick-heating internally neutralized twin tetrode designed for intermittent mobile RF power-amplifier and frequency-multiplier service; co-designated YL1130/8408.