The figure shows how to connect a 7400 to obtain a bistable configuration. The circuit must be powered with 5 V.
This simple humidity sensor can be used in rain or leak detectors. The circuit is for 12 V supply,...
Series and parallel regulator (CB8814E) The two voltage regulator configurations are combined in...
This article, from a 1994 publication, applies to old cars that have contact breaker, but can be...