8350

High-power transmitting tetrode designed for RF power amplification, linear amplification, oscillation, modulation, or frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / 300 A

Description

The Eimac 8350/4CW50,000C is a ceramic-metal water-cooled power tetrode for roughly 50–150 kW output in RF amplifier/oscillator and audio amplifier/modulator service.

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: 10 V
Nominal heater current: 300 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

Tetrode

X-ray radiationInterelectrode capacitances

Amplification factor: 4.5
Max plate voltage: 20000 V
Max screen voltage: 2500 V
Max plate dissipation: 50000 W
Max screen dissipation: 1750 W
Max grid dissipation: 500 W
Max cathode current: 15 A

Promoted ratings mapped semantically from printed characteristics/maximum-ratings tables; remaining published electrical and operating-condition data retained densely in TUBE_SECTION_PARAMETER.

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

1965 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

Frequency Maximum
30 MHz
Typical Plate Voltage
15000 V
Typical Screen Voltage
1500 V
Typical Plate Output Power
100000 W
Water Flow at 50kW Dissipation
15.2 gpm
Water Outlet Temperature Maximum
70 C