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Rectifier - Half Wave ·Rectifier

RA7XL

Air-cooled coaxial high-vacuum diode for recuperative service in RF power-amplifier outputs and high-voltage AC rectification. Rated for approximately 25 kV peak inverse voltage and 7 A average current.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
5.5 V / 90 A

Description

Air-cooled coaxial high-vacuum rectifier diode intended as a recuperative diode in RF power-amplifier output stages and for high-voltage AC rectification.

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
5.5 V
Nominal heater current
90 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
Plate resistance
40 Ω
Max plate voltage
10000 V
Max plate dissipation
2500 W
Rectifier peak inverse voltage
25000 V
Rectifier nominal output current
7 A
Rectifier peak forward current
20 A

Published values promoted where clearly readable; identical repeated sections compressed when applicable.

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

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

  • Heater voltage

    5.5 V

    Published nominal value or midpoint of published range

  • Heater current

    90 A

    Published nominal value or midpoint of published range

Data set 02

1966 Tesla Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater current

    <90 A

  • Maximum heater voltage

    6 V

  • Minimum heater voltage

    5 V

  • Forced-air flow

    3.5 m3/min

    35 mm water-column pressure

Characteristic

  • Minimum emission current

    30 A