This circuit works as a booster operating with signals from 1 to 30MHz. The gain is between 1 and 20dB. The circuit is from the 1990 edition of Radio Electronics Experimenter magazine.
This stage for JFETs was found in a 1965 US publication, but is valid for modern components. |...
This traditional configuration of bandpass or bandpass filter with operational 741 was found in a...
With 3 flip-flops (which correspond to 1 integrated and a half) we can also make a divider by 8,...