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A video distribution amplifier (also known as a distribution amp or VDA) takes a video signal as an input, amplifies it, and outputs the amplified video signal to two or more outputs. It is primarily used to supply a single video signal to multiple pieces of video equipment.
The design of the distributed amplifiers was first formulated by William S. Percival in 1936. [1] In that year Percival proposed a design by which the transconductances of individual vacuum tubes could be added linearly without lumping their element capacitances at the input and output, thus arriving at a circuit that achieved a gain-bandwidth product greater than that of an individual tube.
Not to be confused with Printed electronics. "PC board" redirects here. For the mainboard of personal computers, see Motherboard. "Panelization" redirects here. For the page layout strategy, see N-up. Printed circuit board of a DVD player Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and ...
Video Distribution Amplifier; Organizations ... VDA 6.1, one of their quality management system standards; Verein für Deutsche Kulturbeziehungen im Ausland, ...
In electronics, motorboating is a type of low frequency parasitic oscillation (unwanted cyclic variation of the output voltage) that sometimes occurs in audio and radio equipment and often manifests itself as a sound similar to an idling motorboat engine, a "put-put-put", in audio output from speakers or earphones.
Two large edge-card connectors allowed a "cartridge board" to be plugged in; the cartridge board supplied the main program ROMs, sound program ROMs, graphics ROMs, graphics shift registers, a "SLAPSTIC" copy protection chip, a Yamaha YM2151 FM sound generator, a POKEY and (for some games) TI TMS5220 LPC speech synthesis chip. System 1 was ...