TMD Technologies Limited (TMD), world class microwave and RF manufacturer based in West London, is showcasing its new PTCM Series intelligent, modular travelling wave tube (TWT) RF instrumentation amplifiers on Stand 19 at EMC Europe 2016.
TMD Technologies Ltd. Video
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Currently, electron beams are produced by heating a filament to the point where electrons have enough energy to overcome the work function. In field emission, the potential barrier is lowered by the strength of the applied field only.