This 10-minute timer was found in the July 1994 Radio Electronics magazine. The relay must be sensitive to the supply voltage used. The capacitors determine time ranges.
This circuit produces a clef sound when a pulse is applied to its input. The damping effect is...
This circuit was obtained from Linear Technology's own component manual of the 1990s. The circuit...
This circuit was suggested by Motorola's 1993 Linear Interface ICs. Equivalent operational amplifiers...