This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it can be used as a shield. The components are from the era.
With this simple circuit found in an American 1980s documentation, it is possible to determine the...
This page shows a crystal oscillator for 2 MHz. Other frequencies can be produced depending on the...
This is a converter stage found in old transistor superheterodyne radios. The circuit is for...