This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz. FET is old, but modern equivalents can be used.
This simple circuit with sensors formed by bars or separate screens triggers in the presence of...
This circuit is from a 1967 RCA documentation. Components can be replaced with modern equivalents. The...
This circuit allows you to view two low frequency signals on a single channel oscilloscope. It was...