8351

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 8351 is the designation printed with 4CV100,000C for the same ceramic-metal vapor-cooled power tetrode intended for 100 to 200 kilowatt output 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: 100000 W
Max screen dissipation: 1750 W
Max grid dissipation: 500 W

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

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

Frequency for Maximum Ratings
30 MHz

Capacitance

Input Capacitance
420-500 pF
Grounded cathode
Output Capacitance
46-56 pF
Grounded cathode
Feedback Capacitance
1.5-3.2 pF
Grounded cathode
Input Capacitance
170-210 pF
Grounded grid
Feedback Capacitance
0.6 pF
Grounded grid