Post by thread:[EE] RCA jack with switch

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?

Yeah! An [EE] topic I can agree with! I've only ever seen one of these - pretty sure it was a fully-custom design. It was a LONG time ago - on some semi-pro audio gear (Shure mixer??) - don't remember. Sorry. Any chance you can jimmy something up using a slotted photo-interrupter? Some of the old phenolic open-frame RCA jacks I still have kicking around would allow this - the center contact doesn't fully enclose the plug's center pin and the pin protrudes past the contact by a full 1/8" or so. dwayne At 07:23 AM 4/14/2008, 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? -- Dwayne Reid <spam_OUTdwaynerTakeThisOuTplanet.eon.net> Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax http://www.trinity-electronics.com Custom Electronics Design and Manufacturing

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 <.....micro_eng2KILLspam@spam@yahoo.com> 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? > > > -

excellent....thanks! samples ordered..... "M. Adam Davis" <stienmanKILLspamgmail.com> 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? > > > -

Cool! Thanks for that, Adam. Now added to my "Parts" bookmarks list. dwayne At 10:55 AM 4/14/2008, M. Adam Davis wrote: {Quote hidden}>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 <.....micro_eng2KILLspam.....yahoo.com> 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? -- Dwayne Reid <EraseMEdwaynerspam_OUTTakeThisOuTplanet.eon.net> Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax http://www.trinity-electronics.com Custom Electronics Design and Manufacturing