4CX400A

Ceramic/metal power tetrode for RF transmitting service, designed for high-power amplification with forced-air cooling and low-inductance electrode construction.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: SK600
Base pins: -
Nominal heater: -

Description

The Svetlana 4CX400A, the tube will operate at low plate voltage with high efficiency. This advantage is possible through the use of an electron trapping configuration which reduces secondary emission.

Socket description

Eimac SK-600 series 9-contact coaxial power-tube socket family

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: SK600
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
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

Beam Power

X-ray radiationInterelectrode capacitances

Max plate voltage: 2500 V
Max screen voltage: 400 V
Max plate dissipation: 400 W
Max screen dissipation: 8 W
Max grid dissipation: 2 W

Maximum ratings promoted from source.

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

199X Svetlana

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Maximum Plate Voltage
2500 V
Maximum Screen Voltage
400 V
Maximum Plate Dissipation
400 W
Maximum Screen Dissipation
8 W