radio communications and battle sound-powered telephone circuits. The advanced IVCS was designed, built, tested, and delivered as an upgrade to its long line of voice communication systems ...

radio communications and battle sound-powered telephone circuits. The advanced IVCS was designed, built, tested, and delivered as an upgrade to its long line of voice communication systems ...

Forbes contributors publish independent expert analyses and insights. Ewan Spence covers the digital worlds of mobile technology.

Beginning in 1927 with the establishment of the first commercial telephone circuit between Europe and North America, intercontinental telephone service has, during the past five years, extended ...

Turkey’s telecommunication history is over a century old, with the first telegraph line installed in 1847 and the first telephone circuit in 1881. Huge investments were made in the 1980s and 1990s to ...

The circuit shows one way of obtaining a voltage of 90V from a 1.5V battery supply. The LT1073 switching regulator from Linear Technology operates in... More ...