This circuit was obtained in a 90s Popular Electronics. It is used for tuning on AM radios. The field effect transistors used support equivalents.
This circuit is more sensitive than the previous one, in the sense that we can use weaker and more...
This 3-transistor timer was found in the January 1994 issue of Electronics Now magazine. The...
This circuit appears in other articles in this section, but it is very interesting. It is a...