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Power - Triode (over 1000V 100W) ·Triode

502R5761

High-power RF transmitting triode, Amperex 502-R/5761.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
7.5 V / 24 A

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
7.5 V
Nominal heater current
24 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 0

Triode

X-ray radiationInterelectrode capacitances
Amplification factor
17
Max plate dissipation
1500 W

Class C RF operation: Va 3500 V, Ia 0.860 A, RF output 2175 W, grid bias -450 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

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 0

Triode

Characteristic

  • Plate Voltage

    3500 V

    Class C RF typical plate voltage

Other

  • Heater/filament voltage

    7.5 V

    Filament voltage

  • Heater/filament current

    24 A

    Filament current