This circuit supplies 115 VAC (not perfectly sinusoidal) from a car battery. The circuit is from a Radio Electronics from December 1968.
This signal injector circuit, an astable multivibrator, was found in a 1971 magazine. The circuit can...
This circuit that can only be used with simple resistive and inductive loads (never electronic) was...
This circuit activates a relay at dawn. The relay can be used to sound an alarm, turn on a radio...