Found in an Australian documentation from 1991, this circuit was sold in a kit at the time. It is a small FM transmitter with a very common configuration, also found in other projects on this site.
A rectangular signal applied to the input of this circuit becomes a negative pulse, which...
This circuit like the previous one is intended for 24V x 3W solenoids being connected from the...
This Schmitt trigger with the CA3018 integrated circuit was found in the November 1970 issue of...