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 circuit was found in the May 1983 issue of Radio Electronics magazine. The SSM7046 integrated...
We found this circuit in an 80's Radio Electronics. It can still be easily assembled as the used...
Found in old documentation, this circuit uses special discharge lamps (neon) of the time. The...