This circuit switches on an external load after a certain interval given by the capacitor. The circuit is from a documentation from the 80s. The load depends on the relay used.
We found this circuit in a Popular Electronics from the 80s. The circuit is based on the LM3909, a low...
Found in a 90s Electronic Design, this circuit can be used as a shield in current projects. The...
This sequential circuit drives 6 SCRs that control incandescent lamps. Other types of lamps should...