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Rectifier - Half Wave ·Rectifier

U19

Directly heated full-wave rectifier for high-voltage power supplies, providing approximately 250 mA DC output with substantial inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B4
Base pins
-
Nominal heater
4 V / 3.3 A

Description

Full-wave directly heated rectifier.

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
4 V
Nominal heater current
3.3 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
7100 V
Rectifier nominal output current
250 mA
Rectifier peak forward current
1.5 A
Rectifier max heater-cathode voltage
0 V

Published ratings and characteristics promoted from the 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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater/filament voltage

    4 V

  • Heater/filament current

    3.3 A

  • Peak inverse voltage

    7100 V

  • Nominal/maximum output current

    250 mA

  • Peak anode current

    1.5 A

Construction

  • Rectifier topology

    Half-wave