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Rectifier - Half Wave ·Rectifier

NL615

National Electronics directly heated industrial rectifier emphasizing higher inverse-voltage capability. Its heavy filament provides multiampere output for substantial DC systems.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
UX4
Base pins
4
Nominal heater
2.5 V / 7 A

Description

The NL615 is a National Electronics industrial rectifier tube with published DC output-current and peak-inverse-voltage ratings.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UX4
Base pins
4
Nominal heater voltage
2.5 V
Nominal heater current
7 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
Max cathode current
2.5 A
Rectifier peak inverse voltage
2000 V
Rectifier nominal output current
2.5 A
Rectifier peak forward current
10 A
Rectifier forward voltage drop
12 V
Rectifier warm-up time
20 s

Published rectifier ratings promoted from technical-information table.

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

1956 National Electronics Industrial Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum peak inverse voltage

    2000 V

    Published datasheet value

  • Maximum DC output current

    2.5 A

    Published datasheet value

  • Maximum instantaneous output current

    10 A

    Published datasheet value

  • Maximum AC short-circuit current

    250 A

    Published datasheet value

Characteristics

  • Heating time

    20 s

    Published datasheet value

  • Typical arc drop

    12 V

    At stated peak current

Data set 02

1957 National Electronics

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum DC output current

    2.5 A

  • Maximum instantaneous output current

    10 A

  • Maximum peak inverse voltage

    2000 V

Characteristic

  • Filament heating time

    20 s

  • Typical arc drop

    12 V

  • Typical anode starting voltage

    13 V

Construction

  • Filling

    Mercury vapor

Application

  • Service

    Industrial power rectifier