Hi Rich, Just thinking along a creative theme... You can buy very small 3 pole double throw toggle switches. Depending on your specific requirements you might be able to use two of the poles to switch audio, the third pole pair to supply power and or switch power. It's also not hard to supply switch triggered on/off enable pulses using simple resistor cap networks on the proper wires.
A rather high dollar (extra hyped in tone lore) guitar effect pedal I like to use as a preamplifier uses only one pole of a double throw switch for both sides of the audio, The circuit input is a very high impedance left connected even with the circuit output in bypass mode. Tell us your formal requirements... number of wired connections and their functions. We might be able to give you some interesting ideas. cheers, skipp > Rich Summers <[EMAIL PROTECTED]> wrote: > > I can't use a toggle switch because the contact to > enable the scramble board needs to be momentary to > turn on the board and then a momentary contact to > switch off the board. This contact will be using an > enable wire from the board and another wire that is a > ground. I think a flip flop MAY be the way to go. I > was also wondering if there is a push button switch > that has 2 spst contacts? > Thanks. > --- MCH <[EMAIL PROTECTED]> wrote: > > > For that matter, why not just a toggle switch? > > > > Joe M. > > > > Rich Summers 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 > > > > > > > > > > > > ------------------------------------
