Jamie30 Posted August 25, 2012 Report Share Posted August 25, 2012 Hi,I'm new here, and in humble need of assitance.I was looking at the 555 Push On Push Off switch circuit here on the site and I'd like to use it with a 12v A23 keyfob battery, but I don't have the relay and I'd like squeeze the circuit into a small space too.http://electronics-lab.com/projects/misc/012/index.htmlI'd be really greatful if you anyone could help me out with the circuit PCB layout just using the 555, capacitors, resistors, transistor and push button. Would anyone be able to help re-draw the circuit PCB layout using? Thanks for your time.Jamie Quote Link to comment Share on other sites More sharing options...
Hero999 Posted August 25, 2012 Report Share Posted August 25, 2012 Sorry, I'm not sure what you're asking for.You don't need the relay? Simple just omit it and connect the load in the relay coil's place.What load are you planning to drive?You should consider using a CMOS 555 or replacing it with a CMOS IC (e.g. CD4011) or MOSFETs ( e.g. 2N7000) as the 555 draws too much current to run off such a small battery so it won't last very long. Quote Link to comment Share on other sites More sharing options...
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