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 half-wave control using an SCR, which may be TIC106, has been obtained from a US...
This circuit is from 1989 documentation. It uses the TDA2002 as a modulator and the unusual power...
This circuit warns when the headlight bulb is on. We found it in a Popular Electronics from the...