4X150S

Ruggedized compact RF power tetrode for demanding high-frequency amplification to approximately 500 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 26.5 V / 580 mA

Description

The Eimac 8297 is one of the 8296/4X150R and 8297/4X150S ruggedized radial-beam tetrodes for amplifiers, oscillators and frequency multipliers to 500 MHz.

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: 26.5 V
Nominal heater current: 580 mA
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: 5
Max plate voltage: 2000 V
Max screen voltage: 400 V
Max plate dissipation: 250 W
Max screen dissipation: 12 W
Max grid dissipation: 2 W
Max cathode current: 250 mA

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

Cathode-Heater Voltage Maximum
150 V
Frequency Full Rating Maximum
150 MHz
Useful Frequency Maximum
500 MHz
Typical RF Output Power
250 W
Ruggedized Construction
1 boolean