In the figure we have a simple way to have a peak bargraph indicator. The amplifier is of the audio type, but operational ones can be used. The circuit is from Radio Electronics from March 1980.
This is one of the possible receivers for the CB4582E transmitter. The circuit is from 1995...
The circuit presented is a receiver for the medium wave band. Again, the components are all...
This circuit is from a 1997 English magazine, but it is very current due to the components it...