Dwayne Reid wrote: > One option I have been considering is to replace the toggle switch=20 > with a keyboard switch module. These are highly reliable pushbutton=20 > switches that were designed for use in computer keyboards before the=20 > current keyboard designs came along. I would then just add an=20 > electronic alternate-action circuit with indicator LED to show that=20 > the mic was live. > > I've used these keyboard switches as pushbuttons for similar purposes=20 > in years gone by but I simply don't have enough of them around and=20 > I'm pretty sure that they have been obsolete for a couple of decades. > =20 Conventional keyboard switches are still made, some people preffer the feel of mechanical keyboards and there are also applications wherecustom keyboards are needed and the volume is too small to jusitfy the complex mouldings that current keyboards use. http://www.cherrycorp.com/english/switches/key/mx.htm --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .