This circuit was obtained from an old Signalite documentation. Neon lamps are special types of the time. The operation occurs at low frequencies.
The integrated circuit 4136 consists of operational amplifiers of type 741 in the same enclosure and...
This circuit produces a voltage drop in the first pulse, turning off the relay. On the second...
This circuit can indicate when a high voltage exceeds a certain value, with the transition of its...