Electronic tube and vacuum tube catalog

Base

B7G

Socket code

B7G

Sections

1

Regulator

150 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Cold-cathode gas voltage regulator providing a nominal 150 V stabilized reference over roughly 5–30 mA without heater power.

Base

B7G

Socket code

B7G

Sections

1

Regulator

150 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Ruggedized special-quality 150 V gas regulator for military and industrial equipment, emphasizing controlled regulation, reliability, vibration resistance, and long life.

Base

4AJ

Socket code

IO

Sections

1

Regulator

75 V

Min/Max I

5 mA / 40 mA

8 pins - IO - International Octal

Cold-cathode gas voltage regulator providing approximately 75 V stabilization over roughly 5–40 mA for shunt-regulator and reference service.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Regulator

75 V

Min/Max I

5 mA / 40 mA

Refer to variations

Base

B7G

Socket code

B7G

Sections

1

Regulator

108 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Cold-cathode gas voltage regulator providing approximately 108 V stabilization over roughly 5–30 mA for regulated supplies and reference circuits.

Base

5B0

Socket code

B7G

Sections

1

Regulator

108 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Ruggedized special-quality 108 V gas regulator for dependable military and industrial voltage stabilization over approximately 5–30 mA.

Base

4AJ

Socket code

IO

Sections

1

Regulator

90 V

Min/Max I

10 mA / 30 mA

8 pins - IO - International Octal

Cold-cathode glow-discharge voltage regulator for heaterless shunt regulation and stable reference-voltage service.

Base

B7G

Socket code

B7G

Sections

1

Regulator

75 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Cold-cathode gas voltage regulator providing heaterless reference and shunt-regulated supply stabilization over its specified glow-current range.

Base

4AJ

Socket code

IO

Sections

1

Regulator

105 V

Min/Max I

5 mA / 40 mA

8 pins - IO - International Octal

Cold-cathode gas voltage regulator providing approximately 105 V stabilization for shunt-regulated supplies and reference-voltage circuits.

Base

—

Socket code

—

Sections

1

Regulator

105 V

Min/Max I

5 mA / 40 mA

Base

4AJ

Socket code

IO

Sections

1

Regulator

105 V

Min/Max I

5 mA / 40 mA

8 pins - IO - International Octal

Ruggedized cold-cathode inert-gas voltage regulator maintaining approximately 108 V over roughly 5–40 mA.

Base

4AJ

Socket code

IO

Sections

1

Regulator

150 V

Min/Max I

5 mA / 40 mA

8 pins - IO - International Octal

Cold-cathode gas voltage regulator for heaterless shunt regulation and stable reference-voltage service.

Base

—

Socket code

—

Sections

1

Regulator

150 V

Min/Max I

5 mA / 40 mA

Base

4AJ

Socket code

IO

Sections

1

Regulator

150 V

Min/Max I

5 mA / 40 mA

8 pins - IO - International Octal

Ruggedized special-quality 150 V gas regulator for demanding military and industrial reference or regulated-supply service.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Regulator

85 V

Min/Max I

4 mA / 4 mA

Low-current cold-cathode gas regulator providing approximately 85 V stabilization at roughly 1–8 mA for low-power reference circuits.

Base

Refer to variations

Socket code

B7G

Sections

1

Regulator

85 V

Min/Max I

1 mA / 10 mA

7 pins - B7G - Miniature 7-contact

Precision-oriented 85 V cold-cathode regulator for instrumentation and low-current reference service, with published stability, drift, temperature, and long-life characteristics.

Base

—

Socket code

B4

Sections

1

Regulator

100 V

Min/Max I

50 mA / 200 mA

B4 - European 4-pin base

Heavy-current neon voltage stabilizer providing approximately 100 V over roughly 50–200 mA for robust shunt-regulated power supplies.

Base

Refer to variations

Socket code

B7G

Sections

1

Regulator

108 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Gas-filled 108 V voltage stabilizer for accurate reference and shunt-regulator service over approximately 5–30 mA, with published long-term stability data.

Base

—

Socket code

IO

Sections

1

Regulator

70 V

8 pins - IO - International Octal

Cold-cathode glow-discharge voltage regulator providing approximately 70 V stabilization without heater power.

Base

A

Socket code

B4

Sections

1

Regulator

100 V

Min/Max I

15 mA / 200 mA

B4 - European 4-pin base

Heavy-duty neon voltage stabilizer providing approximately 100 V at roughly 15–200 mA for substantial industrial and shunt-regulated supplies.

Base

—

Socket code

—

Sections

1

Regulator

100 V

Min/Max I

15 mA / 200 mA

Heavy-duty 100 V neon voltage stabilizer for approximately 15–200 mA operation in industrial and power-supply stabilization service.

Base

P

Socket code

P8A

Sections

1

Regulator

150 V

Min/Max I

1 mA / 8 mA

P8A - European 8-pin side-contact base

Low-current 150 V cold-cathode gas regulator for reference and stabilization service at approximately 1–8 mA.

Base

MINIATURE 7P

Socket code

B7G

Sections

1

Regulator

150 V

Min/Max I

5 mA / 15 mA

7 pins - B7G - Miniature 7-contact

Precision 150 V cold-cathode gas regulator operating around 5–15 mA, with published long-term and temperature-stability characteristics for instrumentation.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Min/Max I

2 mA / 20 mA

Miniature 150 V gas voltage stabilizer with auxiliary priming electrode for dependable ignition and operation over approximately 2–20 mA.

Base

P

Socket code

IO

Sections

1

Regulator

150 V

Min/Max I

5 mA / 40 mA

IO - International Octal

Cold-cathode gas voltage stabilizer providing a nominal 150 V reference or regulated supply over approximately 5–40 mA.

Base

OCTAL 8P

Socket code

IO

Sections

1

Regulator

150 V

Min/Max I

5 mA / 40 mA

8 pins - IO - International Octal

Cold-cathode 150 V gas-discharge stabilizer providing heaterless DC supply regulation over approximately 5–40 mA.

Base

—

Socket code

B7G

Sections

1

Regulator

150 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Two-electrode gas voltage stabilizer maintaining approximately 150 V over a 5–30 mA discharge-current range.

Base

Refer to variations

Socket code

B7G

Sections

1

Regulator

150 V

Min/Max I

5 mA / 30 mA

7 pins - B7G - Miniature 7-contact

Gas-filled 150 V voltage stabilizer for approximately 5–30 mA operation, with only a few volts regulation change across its working range.

Base

9Z

Socket code

—

Sections

1

Regulator

82 V

Min/Max I

1 mA / 2 mA

Miniature cold-cathode glow regulator providing approximately 82 V at very low current, typically around 1–2 mA.

Base

9Z

Socket code

—

Sections

1

Regulator

82 V

Min/Max I

1 mA / 2 mA

Miniature cold-cathode voltage regulator maintaining approximately 82 V at roughly 1–2 mA for compact low-current reference circuits.

Base

Refer to variations

Socket code

Refer to variations

Sections

1

Sylvania cold-cathode voltage regulator for heaterless DC stabilization and reference service; surviving manufacturer data provide limited additional electrical detail.

Base

—

Socket code

—

Sections

1

Plate

250 V

Miniature Sylvania cold-cathode voltage regulator for compact heaterless voltage stabilization and reference service.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 300 mA

Plate

8,000 V / 12 W

Ik max

5 mA

rP

525,000 Ω

gm

0.95 mA/V

μ

500

8 pins - IO - International Octal

National Union 2C53 very-high-mu indirectly heated high-voltage shunt-regulator triode for stabilized power supplies, with 8 kV maximum plate voltage and amplification factor 500.

Base

—

Socket code

UX4

Sections

1

Ik max

30 mA

UX4 - Medium-shell UX 4-contact

Western Electric double-gap cold-cathode gas-filled tube for relay, rectifier, and voltage-regulator functions, combining heaterless switching, control, and rectifying behavior.

Base

Refer to variations

Socket code

UX4

Sections

1

Ik max

8 mA

Regulator

100 V

Min/Max I

4 mA / 8 mA

4 pins - UX4 - Medium-shell UX 4-contact

Western Electric two-electrode inert-gas voltage-reference tube maintaining approximately 100 V over roughly 4–8 mA for precision electronic equipment.

Base

—

Socket code

UX4

Sections

1

Ik max

8 mA

Regulator

100 V

Min/Max I

4 mA / 8 mA

4 pins - UX4 - Medium-shell UX 4-contact

Two-electrode inert-gas cold-cathode reference tube designed to maintain a stable approximately 100 V operating drop throughout service life.

Base

Refer to variations

Socket code

UX4

Sections

1

Ik max

40 mA

Regulator

100 V

Min/Max I

5 mA / 40 mA

4 pins - UX4 - Medium-shell UX 4-contact

Three-electrode inert-gas cold-cathode voltage regulator with starter electrode, maintaining approximately 100 V over a broad operating-current range.

Base

—

Socket code

—

Sections

1

Regulator

75 V

Double-gap cold-cathode gas-discharge relay combining switching action with voltage-regulator capability, using separate control and main discharge gaps.

Base

—

Socket code

UX4

Sections

1

Ik max

8 mA

Regulator

100 V

Min/Max I

4 mA / 8 mA

4 pins - UX4 - Medium-shell UX 4-contact

Three-electrode inert-gas cold-cathode voltage-reference tube with dedicated starter electrode, providing a stable approximately 100 V reference.

Base

—

Socket code

UX4

Sections

1

Ik max

8 mA

Regulator

100 V

Min/Max I

4 mA / 8 mA

4 pins - UX4 - Medium-shell UX 4-contact

Three-electrode inert-gas cold-cathode reference tube with starting element, designed for stable approximately 100 V service over its operating range.

Base

—

Socket code

—

Sections

1

Min/Max I

10 mA / 45 mA

Philips neon glow-discharge voltage stabilizer for regulated supplies and reference applications, providing relatively stable voltage over its specified current range.

Base

—

Socket code

—

Sections

1

Min/Max I

10 mA / 45 mA

Gas-discharge surge arrester designed to protect lines and electronic apparatus against transient overvoltage by conducting when its breakdown threshold is exceeded.

Base

—

Socket code

—

Sections

1

Min/Max I

45 mA

Gas-discharge surge arrester designed to protect lines and equipment from transient overvoltage by diverting excessive voltage through a controlled discharge.

Base

—

Socket code

—

Sections

1

Cold-cathode rare-gas surge-arrester cartridge for transient overvoltage protection, normally nonconductive until its firing threshold is reached.

Base

—

Socket code

—

Sections

1

Cold-cathode rare-gas surge-arrester cartridge designed to limit transient overvoltage and protect connected electrical equipment.

Base

—

Socket code

—

Sections

1

Cold-cathode rare-gas discharge cartridge intended for surge protection and transient-voltage limiting without heater power.

Base

—

Socket code

UX4

Sections

1

Ik max

40 mA

Regulator

81.2 V

Min/Max I

5 mA / 40 mA

4 pins - UX4 - Medium-shell UX 4-contact

Three-electrode inert-gas cold-cathode voltage regulator with starter electrode, designed for exceptionally stable regulation around 81 V.

Base

—

Socket code

UX4

Sections

1

Ik max

8 mA

Regulator

82 V

Min/Max I

2 mA / 8 mA

4 pins - UX4 - Medium-shell UX 4-contact

Two-electrode inert-gas cold-cathode voltage-reference and trouble-indicator tube, maintaining approximately 82 V while providing a visible red discharge glow.

Base

—

Socket code

UX4

Sections

1

Ik max

8 mA

Regulator

83 V

Min/Max I

4 mA / 8 mA

4 pins - UX4 - Medium-shell UX 4-contact

Two-electrode inert-gas cold-cathode voltage-reference tube designed for stable approximately 83 V operation with low fluctuation and temperature sensitivity.

Base

P26-XVI

Socket code

IO

Sections

1

Regulator

95 V

Min/Max I

10 mA / 40 mA

IO - International Octal

Neon-filled cold-cathode voltage stabilizer for regulated power supplies and reference service, operating around 90–95 V.