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AH200

Marconi hot-cathode mercury-vapor half-wave rectifier for substantial high-voltage supplies, providing approximately 20 kV inverse-voltage capability and multi-ampere output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 25 V / 40 A

Description

Hot-cathode mercury-vapour rectifier rated to 20 kV peak inverse voltage and 10 A peak current; similar to AH213 with different filament and terminals.

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: 25 V
Nominal heater current: 40 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: 20000 V
Rectifier nominal output current: 2.5 A
Rectifier peak forward current: 10 A
Rectifier warm-up time: 120 s

Mercury-vapor rectifier; highest explicit rectifier ratings promoted.

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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Filament voltage
25 V
Filament current
40 A
Peak inverse voltage
16000 V
Peak anode current
14 A
Average anode current
3.5 A
Minimum pre-heating time
120 s
Maximum DC output voltage
15 kV
3PhaseHalfWave
Maximum DC output current
10 A
3PhaseHalfWave

Construction

Filling
Mercury vapor
Cooling
Air blast / source-specified thermal control