ZM3408

General Electric low-noise broadband SRPM-focused traveling-wave amplifier with integral solid-state power supply for radar, ECM, communications, instrumentation, and radiometry.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

Description

General Electric ZM3408 is a low-noise broadband traveling-wave tube using SRPM focusing and an integral solid-state power supply. The supplied data gives a 7.5–8.5 GHz range, 6.5 dB maximum noise figure, 30 dB minimum small-signal gain, and 10 mW minimum saturated output. Applications include radar, ECM, instrumentation, communications, and radiometry.

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: -
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

TravelingWave

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Traveling-wave-tube RF performance is stored as condition-aware parameters from the supplied General Electric family datasheet.

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

1950 General Electric Transmitting Types

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

OperatingFrequencyMinimum
7.5 GHz
OperatingFrequencyMaximum
8.5 GHz
MinimumSmallSignalGain
30 dB
MinimumSaturatedPowerOutput
10 mW

Other

MaximumNoiseFigure
6.5 dB