crivoli Posted May 12, 2006 Report Share Posted May 12, 2006 I am trying to build the following circuit:http://www.uoguelph.ca/~antoon/circ/amp2.htmI purchased the electret microphone at Radio Shack:http://www.radioshack.com/product/in...entPage=searchThis mic has 3 leads; Red, White and Ground.How do I hook up the 3 leads on this circuit since it only shows two connections to the mic?Thanks-new user Quote Link to comment Share on other sites More sharing options...
audioguru Posted May 12, 2006 Report Share Posted May 12, 2006 Hi Crivoli,Welcome to our forum. ;DDid you get this microphone? RadioShack never show how to connect their stuff.I think it has a red wire for a filtered positive voltage of 4V to 10V, a ground and a white wire output that connects to a coupling capacitor. Quote Link to comment Share on other sites More sharing options...
crivoli Posted May 12, 2006 Author Report Share Posted May 12, 2006 The specs of the mic say that Red is V+, White is Output and Black is Ground...Will this work with the schematic since it only shows two hook ups to the mic? Quote Link to comment Share on other sites More sharing options...
steven Posted May 12, 2006 Report Share Posted May 12, 2006 looks like ya biuldinga listening circuit like i did with audio gurus help. i had no luck with that 1458 circuit ya biulding but i did with the 741 alone you can see them all in the forums under big ear or super snooper circuit help reqest, somewhere Quote Link to comment Share on other sites More sharing options...
audioguru Posted May 12, 2006 Report Share Posted May 12, 2006 You can try connecting the 3-wire microphone like this: Quote Link to comment Share on other sites More sharing options...
allvol Posted May 12, 2006 Report Share Posted May 12, 2006 Audioguru's circuit will work just fine. Quote Link to comment Share on other sites More sharing options...
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