This variable gain circuit for analog video signals was found in a 90s Linear Technology documentation. The circuit has an adjustable gain between -12 and +8 dB.
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This circuit was originally designed to automatically turn on a television when a video game is...
Designed by Philips in 1968 to control the washer water level this circuit uses components from the era....
This circuit uses an optical coupler called Raystor created by Raytheon in the 1960s. The circuit...