excellent....thanks! samples ordered..... "M. Adam Davis" wrote: Looks like what you want is an RCA jack with an internal switch. You can find some of these by searching Digikey: Search for "RCA". Refine search, under "Number of Positions/Contacts" select "2 Conductors, 3 Contacts" Here's one from the above search: http://www.keyelco.com/products/specs/spec191.asp Hope this helps. -Adam On 4/14/08, alan smith wrote: > I've been searching the normal places for a RCA type jack that has a mechanical contact associated with it, such that I can detect when someone plugs into it. These are pretty common for 1/8" mini and such, but haven't found one yet that accepts the RCA plug. > > Anyone know of such a device? > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Moving in southeast Michigan? Buy my house: http://ubasics.com/house/ Interested in electronics? Check out the projects at http://ubasics.com Building your own house? Check out http://ubasics.com/home/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist