Rectifier - Half Wave vacuum tubes

Rectifier

Miniature indirectly heated half-wave rectifier for line-operated equipment with series-connected 150 mA heaters. Its tapped 25 V heater can serve as a current-limiting resistor while providing approximately 100 mA output.

Base

E7-1

Socket

B7G

Heater

25 V

Sections

1

Rectifier

Indirectly heated AC/DC rectifier for transformerless electronic supplies. Its 25 V heater construction supports approximately 250 V RMS input per anode and up to about 85 mA rectified output.

Base

Not recorded

Socket

IO

Heater

25 V

Sections

1

Rectifier

Cathode-type half-wave rectifier for transformerless receivers with series-connected heaters. Its high-voltage heater construction permits direct line-powered operation in compact AC/DC receiver supplies without a separate rectifier filament winding.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Rectifier

Indirectly heated half-wave rectifier for transformerless receivers with series-connected heaters. Rated for approximately 700 V peak inverse voltage, 125 mA DC output, and 750 mA peak current.

Base

5AA

Socket

IO

Heater

25 V

Sections

1

Rectifier

Indirectly heated half-wave rectifier for AC/DC receiving equipment and series-heater supplies. Rated for approximately 700 V peak inverse voltage and 100 mA rectified DC output.

Base

Not recorded

Socket

IO

Heater

25 V

Sections

1

Rectifier

Cathode-type half-wave rectifier for transformerless receivers using series-connected heaters. Manufacturer documentation establishes its AC/DC power-supply application, though complete promoted electrical ratings are unavailable in the current record.

Base

Not recorded

Socket

Not recorded

Heater

25 V

Sections

1

Rectifier

Directly heated half-wave mercury-vapor rectifier for high-voltage power supplies. Rated for approximately 22 kV peak inverse voltage and 40 A peak current with the low arc drop characteristic of mercury vapor.

Base

Not recorded

Socket

MEDIUM5

Heater

5 V

Sections

1

Rectifier

Air-cooled directly heated half-wave mercury-vapor rectifier for high-power supplies. Rated for approximately 22 kV peak inverse voltage, 5 A DC output, and 40 A peak current.

Base

Not recorded

Socket

MEDIUM4BAYONET

Heater

5 V

Sections

1

Rectifier

Air-cooled directly heated half-wave mercury-vapor rectifier for high-voltage supplies. Rated for approximately 7.5 kV peak inverse voltage, 2 A DC output, and 8 A peak current.

Base

Not recorded

Socket

MEDIUM4BAYONET

Heater

5 V

Sections

1

Rectifier

Directly heated half-wave thermionic mercury-vapor rectifier for power supplies. Rated for approximately 3.5 kV peak inverse voltage and 500 mA peak current with a characteristic arc drop around 15 V.

Base

Not recorded

Socket

MEDIUM4BAYONET

Heater

2.5 V

Sections

1

Rectifier

Directly heated mercury-vapor rectifier for special-purpose power supplies. Rated for approximately 2.5 kV peak inverse voltage, 640 mA DC output, and 2.5 A peak current.

Base

Not recorded

Socket

MEDIUM5

Heater

2.5 V

Sections

1

Rectifier

Directly heated special-purpose rectifier diode for low-current applications. Rated for approximately 250 V peak inverse voltage, 10 mA DC output, and 60 mA peak-current capability.

Base

Not recorded

Socket

UX4

Heater

1.75 V

Sections

1

Rectifier

Special directly heated high-frequency rectifier for pulse and RF-related applications. Rated for approximately 100 V peak inverse voltage, 20 mA DC current, and 300 mA peak current.

Base

Not recorded

Socket

B4B

Heater

6.3 V

Sections

1

Rectifier

Directly heated half-wave rectifier for high-voltage power supplies. Rated for approximately 2.5 kV peak inverse voltage, 100 mA DC output, and 500 mA peak-current capability.

Base

Not recorded

Socket

B7G

Heater

1.4 V

Sections

1

Rectifier

Russian half-wave rectifier for AC-to-DC power conversion. Available translated documentation identifies its rectifier function, but verified promoted heater and electrical ratings are insufficient for a more numerical description.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Rectifier

Directly heated rectifier diode for relatively high-voltage, low-current power supplies. Rated for approximately 1.5 kV peak inverse voltage, 50 mA DC output, and 150 mA peak current.

Base

8A

Socket

IO

Heater

2.5 V

Sections

1

Rectifier

Directly heated xenon-filled half-wave rectifier for high-voltage and mobile power supplies. Rated for approximately 10 kV peak inverse voltage, 250 mA DC output, and 1 A peak current.

Base

Not recorded

Socket

MEDIUM4BAYONET

Heater

2.5 V

Sections

1

Rectifier

Directly heated xenon-filled half-wave rectifier for substantial high-voltage supplies. Rated for approximately 10 kV peak inverse voltage, 1.25 A DC output, and 5 A peak current.

Base

Not recorded

Socket

B4F

Heater

5 V

Sections

1

Rectifier

Directly heated xenon-filled half-wave rectifier for high-voltage, high-current power conversion. Rated for approximately 13 kV peak inverse voltage, 1.25 A DC output, and 6 A peak current.

Base

Not recorded

Socket

GOLIATH

Heater

4 V

Sections

1

Rectifier

Miniature high-vacuum half-wave rectifier for very-high-voltage, low-current power supplies. Rated for approximately 12.5 kV peak inverse voltage, 5 mA DC output, and 40 mA peak current.

Base

B7G

Socket

B7G

Heater

4 V

Sections

1

Rectifier

Directly heated high-vacuum half-wave rectifier with thoriated-tungsten filament for very-high-voltage supplies. Rated for approximately 30 kV peak inverse voltage, 100 mA DC output, and 400 mA peak current.

Base

B4A

Socket

B4A

Heater

5 V

Sections

1

Rectifier

Directly heated hot-cathode mercury-vapor rectifier for high-voltage supplies. Rated for approximately 10 kV peak inverse voltage, 250 mA DC output, and 1 A peak current.

Base

Not recorded

Socket

UX4

Heater

2.5 V

Sections

1

Rectifier

Directly heated half-wave mercury-vapor rectifier for high-voltage, high-current supplies. Rated for approximately 10 kV peak inverse voltage, 1.25 A DC output, and 5 A peak current.

Base

Not recorded

Socket

LARGE4BAYONET

Heater

5 V

Sections

1

Rectifier

Indirectly heated mercury-vapor half-wave rectifier for high-voltage, high-current power conversion, combining approximately 20 kV inverse-voltage capability with ampere-class average current.

Base

Not recorded

Socket

GOLIATH

Heater

4 V

Sections

1

Rectifier

Hot-cathode mercury-vapor half-wave rectifier for substantial high-voltage supplies, providing approximately 20 kV inverse-voltage capability and multi-ampere average current.

Base

Not recorded

Socket

SPECIAL2

Heater

5 V

Sections

1

Rectifier

Mercury-vapor half-wave rectifier replacing 4078A, with quadrature filament ratings and approximately 20 kV inverse-voltage capability for high-current industrial power conversion.

Base

Not recorded

Socket

SPECIAL2

Heater

5 V

Sections

1

Rectifier

Hot-cathode mercury-vapor half-wave rectifier for high-current, high-voltage power conversion, providing approximately 20 kV inverse-voltage capability and several amperes average output.

Base

Not recorded

Socket

SPECIAL2

Heater

5 V

Sections

1

Rectifier

High-current mercury-vapor half-wave rectifier replacing 4079A, with quadrature filament excitation and approximately 15 A average-current capability.

Base

Not recorded

Socket

SPECIAL2

Heater

5 V

Sections

1

Rectifier

Very-high-current mercury-vapor half-wave rectifier requiring forced-air cooling at maximum temperature, providing approximately 20 A average output for major industrial supplies.

Base

Not recorded

Socket

SPECIAL3

Heater

5 V

Sections

1

Rectifier

Filament-type half-wave vacuum rectifier for receiver supplies where total B-supply drain is low, providing approximately 55 mA DC output in compact metal construction.

Base

4X

Socket

IO

Heater

2.5 V

Sections

1

Rectifier

Filament-type half-wave high-vacuum rectifier for relatively low-current receiver B-supplies, providing approximately 55 mA DC output.

Base

4X

Socket

Not recorded

Heater

2.5 V

Sections

1

Rectifier

High-voltage half-wave high-vacuum rectifier, also designated 879, for low-current supplies requiring approximately 12.5 kV peak inverse-voltage capability.

Base

4P

Socket

Not recorded

Heater

2.5 V

Sections

1

Rectifier

Rugged high-vacuum half-wave rectifier for high-voltage equipment exposed to shock and vibration, providing approximately 25 kV peak inverse-voltage capability at low current.

Base

4AB

Socket

UX4

Heater

2.5 V

Sections

1

Rectifier

Forced-air-cooled external-anode Eimac high-vacuum rectifier for severe high-power service involving high inverse voltage, frequency, temperature, or transient conditions.

Base

Not recorded

Socket

Not recorded

Heater

7.5 V

Sections

1

Rectifier

Half-wave high-vacuum rectifier for power-supply service; manufacturer literature notes that four tubes with series filaments can emulate a type 80 full-wave arrangement.

Base

Not recorded

Socket

OCTAL4

Heater

2.5 V

Sections

1

Rectifier

Directly heated single-anode mercury-vapor half-wave rectifier for power conversion, providing approximately 4 kV inverse-voltage capability and 400 mA average output.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Rectifier

Directly heated single-anode mercury-vapor half-wave rectifier for high-voltage power conversion, providing approximately 10 kV inverse-voltage capability.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Rectifier

High-voltage half-wave vacuum rectifier for cathode-ray oscillograph and television circuits requiring high voltage at low current, with approximately 12 kV inverse-voltage capability.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Rectifier

Western Electric single rectifier for power-supply service, providing substantial current and approximately 1.8 kV peak inverse-voltage capability with a low published forward drop.

Base

Not recorded

Socket

UX4

Heater

5 V

Sections

1

Rectifier

Mercury-vapor half-wave transmitting rectifier for high-voltage supplies, providing approximately 12.5 kV inverse-voltage capability and ampere-class average current with low arc drop.

Base

Not recorded

Socket

UX4

Heater

5 V

Sections

1

Rectifier

Directly heated mercury-vapor half-wave transmitting rectifier for high-current DC supplies, providing approximately 2 A nominal output with low forward arc drop.

Base

Not recorded

Socket

UX4

Heater

5 V

Sections

1

Rectifier

Directly heated half-wave rectifier for AC-to-DC power conversion, using a 31 V filament suitable for series-heater equipment and providing approximately 100 mA output.

Base

8HB

Socket

Not recorded

Heater

31 V

Sections

1

Rectifier

Directly heated mercury-vapor half-wave transmitting rectifier for high-voltage, high-current supplies, providing approximately 2 A nominal rectified output.

Base

Not recorded

Socket

UX4

Heater

5 V

Sections

1

Rectifier

Western Electric tungsten-filament argon-filled half-wave rectifier for AC-to-DC conversion and battery charging, providing approximately 2 A DC output.

Base

Not recorded

Socket

EDISON

Heater

2 V

Sections

1

Rectifier

Western Electric three-electrode cold-cathode gas-filled tube for relay, rectifier, and voltage-control service, combining heaterless switching and rectifying functions.

Base

Not recorded

Socket

UX4

Heater

Not recorded

Sections

1

Rectifier

Western Electric three-electrode cold-cathode gas-filled tube for relay, rectifier, and voltage-regulator or control service in industrial and communications equipment.

Base

Not recorded

Socket

UX4

Heater

Not recorded

Sections

1

Rectifier

Western Electric three-electrode inert-gas cold-cathode tube for relay, rectifier, and voltage-control applications, providing heaterless gas-discharge switching and control.

Base

Not recorded

Socket

UX4

Heater

Not recorded

Sections

1

Rectifier

Western Electric three-electrode inert-gas cold-cathode tube for relay, rectifier, and voltage-regulator or control service without requiring a filament supply.

Base

Not recorded

Socket

UX4

Heater

Not recorded

Sections

1