We found this CMOS circuit for excitation of a relay in an old documentation. The transistor is a general-purpose high voltage as used in the power supply.
This circuit was found in a 1965 Radio Shack documentation. The transistors are from that time....
This circuit was obtained in a Motorola documentation from 1968. The circuit uses a power...
This receiver can be used to receive signals from the previous circuit transmitter. The circuit is...