Relay driver (CB20549E)

Found a documentation on PCs from 1996, this circuit can be used as a shield. The relay is rated at 100 mA of coil current.

15 V x 100 mA Voltage Regulator (CB1510E )
We found this circuit in an integrated circuit cookbook from 1974. The circuit can provide larger...
High Power 3 Voltage Source (CB20210E)
This powerful source was obtained in an American documentation of the 80s. Some components are...
Phase Shift Oscillator (CB11480E)
This circuit was obtained in an old publication from 1979. It describes a simple low frequency...