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1765

High-power directly heated mercury-vapor half-wave rectifier, formerly designated 1765, for industrial high-voltage supplies requiring approximately 1.5 A DC output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 50 V / 20 A

Description

Former designation of DCG 5/7500, explicitly stated on the shared datasheet. The supplied Philips sheet was read for heater/filament data, ratings, characteristics, capacitances, and operating conditions where published.

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: 50 V
Nominal heater current: 20 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: 10000 V
Rectifier nominal output current: 1.5 A
Rectifier peak forward current: 7.5 A
Rectifier forward voltage drop: 18 V

Mercury-vapour rectifier; former designation 1765 shares the same source.

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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Construction

Filling
Mercury vapour

Other

Maximum peak inverse voltage
10000 V
Maximum average rectified current
1.5 A
Maximum peak rectified current
7.5 A
Output power range
4.8-7.0 kW

Characteristics

Forward voltage drop
18 V