This circuit uses a quadruple operational amplifier of the time. The circuit is from the 70s but can be implemented with modern operators that require the use of a symmetrical source.
) Found in a 90s Linear Technology documentation, this circuit is a fading of video signals and...
This is an RF amplification step for small signals using the common base configuration. The...
In the figure we have the way to use a 4017 as a sequencer controlled by a microcontroller. With...