Cheadle, Hulme, UK — Boonton, a Wireless Telecom Group company, has introduced the PIM 31 precision analyser for testing passive intermodulation (PIM) of RF components and assemblies. Passive ...

Back in the Jurassic days of electronics, before Lee de Forest developed the three-element “grid audion” (a triode vacuum tube providing amplification) around 1906, circuits and channels were passive ...