This logic circuit that transfers the level from one gate to the next with each clock pulse was found in the September 1985 issue of Radio Electronics magazine.
The cut-off frequency of the filter shown in the figure can be adjusted to values between...
This circuit was found in a Popular Electronics from the 90s. The components used are all common...
This circuit uses a dual floodgate MOSFET not very easy to obtain today. Its handling is very...