This circuit was suggested by Motorola in a 1969 publication. It makes use of components of the time, but both the FET and the bipolar may be general purpose current types.
Found in American documentation from the 90's, this circuit activates a 12 V sensitive relay. The...
This circuit, suggested by Motorola, provides a voltage of 15 V under a current of up to 2 A. The...
Among other applications, the 1960 Sylvania transistor manual indicates this timer for chess...