This protection circuit trips by quickly blowing the fuse in the event of an overcurrent. The circuit is from a 1964 Electgronic Design. The transistor can be general-purpose.
Found in a Popular Electronics from the 90s, this game can be seen in other configurations on this site. The...
With a 1 500 uFcapacitor this timer can reach times up to one hour. The capacitor must be of good...
This circuit appears in other articles in this section, but it is very interesting. It is a...