Recently I have bought a very cool small chiness stereo amplifier called AK-380. It has a Bluetooth,… [more]
Part 2: Schemes for control of lighting (lamps) by electrical switchers Scheme 1: Control of luminaries… [more]
Together with doorbells almost every building consisting of more than one floor there is built an intercom… [more]
Part 1: Power cables and installation materials In this article I will try to give the most common multi-line… [more]
Doorbells serve to signal the presence of a guest at the front door. In essence they are the most diverse… [more]
Everyone is faced at least once with the problem to provide computer access point to a place that is… [more]
When network devices have being connected some cables are used terminated by RJ 45 connectors. All cables… [more]
Design of CATV and SAT TV 1.Cabel colective television systems ( CATV ) – Satellite television… [more]
Categories/Classes in SCS 1.Cooper phisical layer– shielded and unshielded. Category 3/Class… [more]
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