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103

Machlett high-vacuum industrial rectifier for converting relatively small AC currents at extremely high voltage to DC. Rated for approximately 125 kV peak inverse voltage for demanding industrial power supplies.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / 11.5 A

Description

High-Voltage Industrial Rectifier Tubes, ML-103, ML-108, depending upon the tube type. Design and process features ML-115, ML-120, ML-121, ML-170, and ML-180, are high- are incorporated which insure stable and reliable aperation vacuum diodes designed to be used in various power-supply even under wide variations in ambient temperature and the circuits for the rectification, at high peak inverse voleages, of inherently severe conditions of many industrial applications. relatively small values of alternating current to unidirectional Cathodes are especially sturdy, loop-type, pure tungsten fila- or direct current. Industrial applications for such tubes include ments permitting tubes to be mounted in any position. Anodes

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: 10 V
Nominal heater current: 11.5 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: 125000 V
Rectifier peak forward current: 78 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