This circuit was obtained from the November 1989 issue of Radio Electronics magazine. The circuit is for motors up to about 1.5 A.
This circuit was obtained from an ancient American documentation. The coil consists of 80 to 100...
This ultra-simple 9 V power source was obtained in an Argentine publication of the 1970s, but it...
This circuit was found in a 1977 Signetics manual. The 556 consists of a 555 double and the...