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  1. J

    Variable Power Supply

    If you can tolerate a little more than 0V on the bottom end and a little less than 30V on the top end AND you don't have a burning dsire to build the whole thing yourself you might want to take a look at these power regulators on eBay: 250068727100 .  I have used these several times and been...
  2. J

    Variable Power Supply

    You are going to need to put some parameters around this question. From what voltage to what voltage? AC or DC? How much amperage? Jim
  3. J

    Temperature display with ICL7107CPL

    Gayan, I can't help with your issue but would sure love to see a schematic when you are finished.
  4. J

    Tandberg Solvsuper renovation + DAB project

    You will probably have more success searching on "DAB" in quotes. Jim
  5. J

    labels on electronics

    Ben, I gonna take a guess that what you are looking at is a diode and the "protection" you talk about is actually a heatsink which helps the part dissipate heat it builds up.  As Ante suggested, upload a couple pictures and/or some of the numbers off the parts. Jim
  6. J

    slow moving DC motor

    Callahan, I don't know of a chip already programmed and you are pretty close as to what you will need to make this approach work.  Perhaps someone has a suggestion that is simpler. Jim
  7. J

    slow moving DC motor

    Can you use a servo?  You could use a continuous rotation servo motor with a BASIC Stamp (or other processor) and PWM (pulse width modulation) to make it maove at almost any rate you want...especialy slow. Jim
  8. J

    AWG?

    You are very welcome. Jim
  9. J

    AWG?

    If you go to this site: http://www.powerstream.com/Wire_Size.htm you will find a chart that shows AWG, Diameter in inches, and diameter in mm as well as some ohter characteristics. Jim
  10. J

    Touch sensitive pad

    You might think about a light curtain instead...like a garage door opener but a lot smaller.  Instead of the touch to the surface the trigger is tripped by passing your finger through the light curtain.  With this approach you could trigger the switch by passing anything through the light...
  11. J

    datasheet

    try http://www.solarbotics.com/products/index.php?search_id=101
  12. J

    Help with Timer IC

    You might take a look at http://ourworld.compuserve.com/homepages/Bill_Bowden/ he has a lot of circuits and a good tutorial on 555 timers. Jim
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