The FETs of this circuit can be the BF245. The circuit is from an old documentation and can be used in the amplification of infrasonic waves, of a sonic attack, for example.
) 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...