We found this circuit in the April 1993 Electronics Now magazine. Almost any general-purpose JFET can be used. Power is supplied by a battery (2 x 9V).
This interesting automotive alarm was found in an English publication from the 1980s. The circuit...
This modem circuit using a 4046 PLL was found in the October 1994 issue of Electronics Now. The...
This traditional timer setting can provide time intervals up to a few tens of minutes. The...