material that looks like circuit board
It looks like an electronic device with numerous printed circuit boards installed on a larger circut board and power supplies to run those boards and lots of wires for more devices to be connected. A hybrid circuit, as the name implies, looks like a printed circuit board, but contains some components that are grown onto the surface of the substrate rather than being placed on the surface and soldered. history printed circuit boards evolved from electrical connection systems that were developed in the 1850s.. A circuit board is a piece of insulation that is threaded with conductive wires and similar components. when a power supply introduces an electrical charge to the board, it is distributed along these wires to different components in a variety of ways. this lets the board control how these components. 
material that looks like circuit board Simply put, a printed circuit board (or pcb) is just a small board that allows several different components to connect to one another. these are usually made of a semi-conductive material such as resin or fiberglass and are flexible enough to bend (within reason) without breaking.. A printed circuit board (pcb) mechanically supports and electrically connects electrical or electronic components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. components are generally soldered onto the pcb to both electrically connect and mechanically fasten them to it..
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