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  1. poor mystic

    casio touch screen watch 1553 - 100

    :) I can only suggest another broken watch, unless you want to employ an engineer and have your springs made especially.
  2. poor mystic

    When should you buffer a signal?

    :) I see. Where did you suspect a need for the buffer?
  3. poor mystic

    mosfet diode

    Hi :) You could look up the MOSFET's data sheet, which will usually include an equivalent diagram like the one attached. This diagram is for the FQP50N06, which happens to be the first that came up on google. You'll see from the diagram that a diode exists between source and drain. This diode is...
  4. poor mystic

    volumetric display project

    Hi :) I tried google. Search terms were: "computing "3D display project"" There's a lot of stuff there, but i don't know whether it'll help you.
  5. poor mystic

    74HC14 Schmitt Trigger

    No pull down is needed. Just straight to ground. :)
  6. poor mystic

    When should you buffer a signal?

    Hi :) In general, signals need buffering when the output impedance of the signal source is too high for the load. This can result in the signal being lost. However that might be cryptic advice. You're welcome to be a more specific about your problem, and then you might get a more specific...
  7. poor mystic

    HELP Kef PSW 2150 trouble shooting

    Hi :) I did a search on google using the terms "Kef psw2150 forum", and found the following results, among others: This thread might contain details of the work you'll need to accomplish: http://www.avsforum.com/forum/155-diy-speakers-subs/1364560-aftermarket-amp-kef-psw2150.html This seems to...
  8. poor mystic

    How do I increase energy flowing into a Capacitor?

    Hi Electro speaking for myself, you probably scare us all. Do you realise what will happen once that capacitor is fully charged? It'll carry a potentially lethal charge of energy, perhaps for days or weeks. And you'll probably think I'm kidding here, so check it out: even a 9V battery can kill...
  9. poor mystic

    Newbie needs Help with Component Number

    Hi :) There are lots of different packages for transistors, a few of which are depicted in the image attached. You need to make sure the package you order is one you have the technology to use! When in doubt, Google will surely help you find images of any unfamiliar package. It sounds like you...
  10. poor mystic

    Soldering Wires

    :) If I haven't completely missed the point of your thread, the "motherboard" must have an output of some kind. Perhaps it would help to give some details of the motherboard. A photo might be useful, as well as anything you can give us in text.
  11. poor mystic

    Soldering Wires

    Hi It's not absolutely necessary to use a remote shutter trigger - but it is easier to use an electronically activated trigger than to hack into the camera. The approach hevans1944 is suggesting would save you from the need to modify the camera, and would allow you to use any camera - not just...
  12. poor mystic

    AC and DC Voltages for Electrolysis

    I agree that you need DC, because you are engaged in electrolysis, which is a polarity-dependent phenomenon.
  13. poor mystic

    AC and DC Voltages for Electrolysis

    " ...the polarity of both ac and dc are the same in low voltages?" No, there's an error - in AC polarity changes continuously, which is why its' "alternating". As for the question of why, exactly, low currents are better, I think it better to ask a chemist. Or possibly, Tha fios agaib might...
  14. poor mystic

    AC and DC Voltages for Electrolysis

    Yes, Larry, I believe you're right. It might be best to try the lowest voltage that will drive current through the work. A long, slow job might give better results than a quicker, high current job.
  15. poor mystic

    Can I connect a Car Lighter Adapter directly to a car battery and use it to power electronics?

    Mmm you haven't by any chance reversed the wires? You'd think the equipment would go bang! - but it might have protection built in. I'd check with a multimeter, or even a small 12V light bulb... see if the bulb lights when connected between the shell of the adapter socket and the body of the...
  16. poor mystic

    Can I connect a Car Lighter Adapter directly to a car battery and use it to power electronics?

    Hi Chris :) No. a resistor won't help. Does your GPSwork when you plug it in by itself without the 3-way adapter? Mark
  17. poor mystic

    AC and DC Voltages for Electrolysis

    Interesting! :) Here's a link, easy enough to find. I have a further suggestion: to prevent damage to the power supply, feed either the cathode or anode through a 12V, tungsten filament lamp. This will light up in the event of a short circuit...
  18. poor mystic

    AC and DC Voltages for Electrolysis

    I heard of the technique some time ago. Sodium Carbonate (washing soda) was the electrolyte mentioned.
  19. poor mystic

    LG hi-fi system (lol i know ) LCD backlight LED,s not working

    Hi :) The problem you have cannot be solved in general terms; you need the circuit diagram for the particular model of equipment which is faulty. I have no such diagram, and don't even know the model of your hi-fi. Even knowing the model might not help, because the circuit diagram might not be...
  20. poor mystic

    AC plug wires are reversed and Above ground potential

    Sorry, I mean an electrician right there, to clear what might be a potentially lethal fault. The OP is in another country, isn't he?
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