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.
This circuit is from an American magazine that no longer exists, Modern Electronics, in a February...
Found in 80's Radio Electronics, this circuit uses an LED to indicate that a battery is being...
This circuit, found in an old 1967 publication, cuts the current from a source when the current...