Recent content by HalfSpec

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    LM555 IC based Timed Relay Help

    How about now? :) http://www.halfspec.com/sc5.GIF I removed the diodes for simplicity. I'll figure them out once I get a working circuit. Thanks Lane
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    LM555 IC based Timed Relay Help

    Thanks for clearing up everything for me Alun. I'd rather be wrong and have direction than think I'm right and looking for solder splashes :) I truly appreciate your insight. Lane
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    LM555 IC based Timed Relay Help

    Alun,     Thanks for being patient with me. I think I've got it straight now, although it seems like this would just short the circuit out at the diode: http://www.halfspec.com/sc4.GIF Ok, what you're telling me seems to go against what I've based my design on. This is how I understood the...
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    LM555 IC based Timed Relay Help

    Alun,     Thanks for the fast response. Here is my updated schematic: http://www.halfspec.com/sc3.GIF. I'm assuming you mean the diode on the output pin of the LM555. Is this what you mean by reverse parallel? Also, did I correct my mistake by connecting pin 5 to the ground with the 10nf...
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    LM555 IC based Timed Relay Help

    Hi,       I’m very new here, and I basically found this forum while searching for answers concerning my latest project. I’m trying to build an automotive “turbo timer.” For those of you who don’t know Commercial turbo timers consist of 3 wires; a 12v wire, a ground wire, and an ignition monitor...
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