Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Rectifier - Half Wave ·Rectifier

108

Machlett high-vacuum industrial rectifier for extremely high-voltage power supplies. Rated for approximately 140 kV peak inverse voltage and 200 mA peak anode current, emphasizing exceptional inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
13 V / 12.5 A

Description

High-voltage industrial high-vacuum rectifier for power-supply and industrial rectification service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
13 V
Nominal heater current
12.5 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

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
140000 V
Rectifier peak forward current
200 mA

Promoted fields populated from explicitly published ratings/characteristics; service-specific data retained as parameters.

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

1971 Machlette Laboratories

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • High-Voltage Industrial Rectifier Tubes, ML [1]

    103

    High-Voltage Industrial Rectifier Tubes, ML-103, ML-108, depending upon the tube type. Design and process features

  • High-Voltage Industrial Rectifier Tubes, ML [2]

    108

    High-Voltage Industrial Rectifier Tubes, ML-103, ML-108, depending upon the tube type. Design and process features

  • withstanding peak inverse voltages of [1]

    125 kV

    withstanding peak inverse voltages of 125 to 200 kilovolts and load current ratings suitable for a variety of applications,

  • withstanding peak inverse voltages of [2]

    200 kV

    withstanding peak inverse voltages of 125 to 200 kilovolts and load current ratings suitable for a variety of applications,

  • and delivering [1]

    78 A

    and delivering 78 to 200 milliamperes of peak anode current, are listed below with their characteristics and ratings.

  • and delivering [2]

    200 A

    and delivering 78 to 200 milliamperes of peak anode current, are listed below with their characteristics and ratings.

  • within the peak tube current rating depends upon the current When the ML

    180

    within the peak tube current rating depends upon the current When the ML-180 is installed in an oil-filled container

  • impedance, i.c., whether it is resistive, inductive, or capaci- in the order of

    200

    impedance, i.c., whether it is resistive, inductive, or capaci- in the order of 200 PKV, the anode end should be fitted

  • in terms of average current delivered to the load. These load has been found

    1

    in terms of average current delivered to the load. These load has been found 1o give proper results for operation under