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  1. J

    Multiple Spark CDIS Project

    No way, they make an electric fence tester? I just always used a piece of wet grass. *zzzzap* yep, it's working! :D
  2. J

    solar panel voltage regulator

    You talking lead acid battery? http://batteryuniversity.com/learn/article/sulfation_and_how_to_prevent_it To reverse soft sulfation you need an overcharge of about 200mA. Can read more in the link above.
  3. J

    Can anybody help me?

    Well short of a college degree being the simple answer. Start by designing electronic circuits that solve problems you have.
  4. J

    Need help with strobe circuit

    Not in that schematic you posted!
  5. J

    Light Controller Using 8051

    well I can't see the markings on the relay in the picture or else I would try to search for you.
  6. J

    Light Controller Using 8051

    Try the datasheet
  7. J

    LED Turn Signals - Need Diode Help !!!

    http://www.radioshack.com/family/index.jsp?categoryId=2032269&allCount=449&fbc=1&f=PAD%2FProduct+Type%2FDiodes&fbn=Type%2FDiodes&filterName=Type&filterValue=Diodes
  8. J

    LED Turn Signals - Need Diode Help !!!

    yes radio shack carried them last I knew, always call and they will let you know for sure
  9. J

    voltage drop

    http://www.dimensionengineering.com/ParallelRegulators.htm did you see this? what is your load? Have you considered it might be the battery?
  10. J

    Trying to fix Black and Decker RT650 multitool

    you put the bulb in series with the incoming power afaik.
  11. J

    Can someone help me out please?

    http://www.dimensionsguide.com/how-big-is-a-cattle-prod/
  12. J

    Proximity alert wildlife watch

    quite the project to say the least. My first concern would be the distance. How exactly do you plan on sending and receiving data at 1000 feet? Second problem is the interfacing to the computer, do you or someone you know understand programming?
  13. J

    vibration motor

    the easiest way is to have the seven segment display be populated by the micro-controller. You must have something that can relate the two circuits.
  14. J

    Speakers Timer

    My first thought is to use a micro-controller. How are you at programming? Someone else might have a better idea, but with the number of different timings that you require would be handled much easier in software.
  15. J

    pic16f6xx inerface to electromagnetic relay

    :D Brilliant!
  16. J

    need make 48volt 2A power supply

    Why without a transformer? Your only option would be a buck converter afaik.
  17. J

    pic16f6xx inerface to electromagnetic relay

    serious? Google "let me google that for you"
  18. J

    How to use varying voltage to choose between four circuits

    Only thing I got is to use a pic with analog input???
  19. J

    What's wrong with this ckt

    Well if that was my circuit, I would put the battery where the LED is(neg tied to the 2n2222 emitter) and move the LED and series resistor and put it in series with the collector of the 2n2222. Then move the LDR and place it between the base of the 2n2222 and emitter.
  20. J

    555 and a lot of LEDs

    What transistor are you using? If you are talking about a mosfet then I don't think the time it would take for the gate capacitance to charge would be even visible to the eye. You are talking about microseconds.
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