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  1. D

    Voltage Level Switch

    Alright, looks good I'll breadboard this and play around with it. I still have to put together a 12 vdc voltage regulator, maybe an LM7812. Thanks again Dan and everybody else you all have been really helpful. Dan P
  2. D

    Voltage Level Switch

    Thanks for all the help guys. What would I use for the U1 voltage regulator. I'm going to power the circuit from a garden tractor, probably 13-15 vdc when running.
  3. D

    Voltage Level Switch

    Thanks Supercap2F I'll give it a try and let you know how it works out, I appreciate the help. I was an avid electronic experimenter back in the 60's, 70's and 80's but have not fooled around with it much since, will be fun to get back into it again.
  4. D

    Voltage Level Switch

    Supply = 12 vdc Alarm = Sonalert 12 vdc, 40 ma
  5. D

    Voltage Level Switch

    Do you have a circuit diagram with parts List?
  6. D

    Voltage Level Switch

    I have an aneometer that puts out 0-2vdc. I want to monitor that voltage and trigger an alarm when the voltage gets below 1.5 vdc. Anybody have sugestions. Thanks
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