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Rectifier - Half Wave ·Rectifier

40SUA

Indirectly heated half-wave rectifier for series-heater AC/DC receiver power supplies. Its 40 V heater construction provides approximately 75 mA nominal rectified output for transformerless line-operated equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B4
Base pins
-
Nominal heater
40 V / 200 mA

Description

Indirectly heated half-wave rectifier for series-heater A.C./D.C. receivers.

Socket description

European 4-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B4
Base pins
-
Nominal heater voltage
40 V
Nominal heater current
200 mA
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
Max plate voltage
250 V
Rectifier nominal output current
75 mA

Published ratings and characteristics promoted from approved datasheet.

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

193X Cossor

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum anode RMS voltage

    250 V

    Published datasheet value

  • Maximum DC output voltage

    210 V

    Published datasheet value