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Rectifier - Half Wave ·Rectifier

3B29

Rugged high-vacuum diode for clipping and high-voltage rectifier service. Its heavy heater and high inverse-voltage capability suit demanding professional pulse and power-supply applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
SEE DATA
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater
2.5 V / 4.75 A

Description

Rugged high-vacuum diode for clipper or high-voltage rectifier service.

Socket description

Medium 4-contact bayonet base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
SEE DATA
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater voltage
2.5 V
Nominal heater current
4.75 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

SEE DATA - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
16000 V
Rectifier nominal output current
65 mA
Rectifier peak forward current
250 mA
Rectifier forward voltage drop
130 V

Promoted only from clearly identified printed ratings/characteristics; additional published operating points retained in TUBE_SECTION_PARAMETER.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

  • Heater or filament voltage

    2.5 V

    Published nominal value

  • Heater or filament current

    4.75 A

    Published nominal value

Other

  • Peak inverse voltage

    16000 V

    Published rating

  • Average or DC output current

    64 mA

    Published rating

  • Peak forward current

    250 mA

    Published rating

Data set 02

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Peak inverse voltage maximum

    16000 V

    HalfWave

  • Peak plate current maximum

    250 mA

    HalfWave

  • DC output current maximum

    65 mA

    HalfWave

Characteristic

  • Average tube voltage drop

    130 V

    HalfWave