Hobbiest Posted November 20, 2005 Report Share Posted November 20, 2005 I have checked hundreds of sites for some free electronic surveillance circuits and keep finding nothing but 30 year old one and two transistor circuits that all of the sites seem to list each others stuff. I finally found a link on your site that is "REAL" and has professional and I might add "FREE" surveillance schematics. Quote Link to comment Share on other sites More sharing options...
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