Sounds Like a flip flop R S latch circuit to me. Google that and you will find something. A 7400 IC could do the latch part. Not knowing voltage and current requirements I really can't go into more detail.
73 Bernie Parker K5BP --- In Repeater-Builder@yahoogroups.com, "Rich Summers" <[EMAIL PROTECTED]> wrote: > > I need to build a simple circuit to enable a voice scrambler in a radio. > What I need is a momentary contact by pressing a button so that the > activation lead goes to ground and when this happens I need an led > indication that the unit has been activated. > I also need the led to turn off when the button is pressed again. This > deactivates the board and the radio returns to normal mode. > I need this in a small box. > Does anyone have a circuit I could build for this particular application? > > Thanks, > > Rich >
