The integrated circuit used in this regulator is not common today. The circuit is from a technical documentation from the 80's and is only used as a reference for eventual repair.
The figure shows how to obtain a locking relay for an alarm circuit with sensors in series and in...
This TTL counter was found in the March 1991 issue of Radio Electronics magazine. The circuit is...
The presented circuit uses two old germanium transistors. We found this configuration in a...