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DQ2

Directly heated mercury-vapor half-wave rectifier designed primarily for medium-power high-voltage rectifier installations, providing approximately 10 kV inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: 4
Nominal heater: 2.5 V / 5 A

Description

A directly heated mercury-vapor rectifier intended mainly as a high-voltage half-wave rectifier in medium-power rectifier installations.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 4
Nominal heater voltage: 2.5 V
Nominal heater current: 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: 10000 V
Rectifier nominal output current: 250 mA
Rectifier peak forward current: 1 A
Rectifier forward voltage drop: 12 V
Rectifier warm-up time: 60 s

Mercury-vapor high-voltage rectifier.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Inverse voltage maximum
10 kV
Peak plate current maximum
1 A
Average plate current maximum
250 mA
Warm-up time minimum
1 min
Normal
Warm-up time after transport
30 min
AfterTransport

Characteristic

Arc voltage at 0.5 A
12 V