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Rectifier - Half Wave ·Rectifier

7786

High-current directly heated industrial power rectifier. Rated for approximately 920 V peak inverse voltage, 6.4 A DC output, and 80 A peak current with a low conducting voltage drop.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
2.5 V / 21 A

Description

7786 industrial power rectifier tube.

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
2.5 V
Nominal heater current
21 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
6.4 A
Rectifier peak inverse voltage
920 V
Rectifier nominal output current
6.4 A
Rectifier peak forward current
80 A
Rectifier forward voltage drop
10 V

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

1957 National Electronics

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum DC output current

    6.4 A

  • Maximum instantaneous output current

    80 A

  • Maximum peak inverse voltage

    920 V

Characteristic

  • Filament heating time

    60 s

  • Typical arc drop

    10 V

  • Typical anode starting voltage

    20 V

Construction

  • Filling

    Inert gas

Application

  • Service

    Industrial power rectifier