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  1. Externet

    Fan Magnets

    And the fan runs better, worse or the same ?
  2. Externet

    Fan Magnets

    Before replacing the pathetic magnet ring, check its poles locations, by passing a sewing needle all around it. (or iron filings) You may be surprised of the poles pattern; which you will hardly duplicate by hand with neodymium magnets.
  3. Externet

    Energy Harvesting

    It is the opposite; charging does not cease; charging starts ! And because the amount of generation/wind is too small for the battery demand, stalls. Do not expect a generator under load be as easy to spin as one without load. Make sure the cell to be charged is not shorted or fully...
  4. Externet

    Soldering problem

    Take it as religion : to solder properly, the components, traces or leads to be soldered have to be hot, not just the solder. You heat them by touching with the solder wetted tip, then apply solder to the junction of tip and component for only as long as to produce the proper flow and amount of...
  5. Externet

    What is this component please?

    It is a 4.7uF at 250VDC capacitor, metallized polypropylene. Widely available, cheap, and it would be good to buy a few in case after replacing it blows up again because of an external cause of damage that will have to be fixed before replacement. Digi-Key or Mouser should sell them.
  6. Externet

    need HELP! with figuring out my LED/Resistor problem!

    Chances are the LEDS died, were reversed later, or the power supply died, or both.
  7. Externet

    Standard values

    Take it as 1.4 Vf, 5Vr 10mA
  8. Externet

    My free energy generator

    Can you make another and sell it to me ?
  9. Externet

    4.5 v battery charger.

    Connect the 5 V power supply to the battery with a 1N4001 diode in series. +5.0V-----------------|>|------------Bat(+) Common----------------------------Bat(-) If the battery needs 5.0V to charge, just connect directly without the diode.
  10. Externet

    Charging a Tablet off of Car Battery

    Hi. Found this: http://www.androidtablets.net/forum/acer-iconia-a100/40045-fyi-car-power-adapter-doesnt-work-acer-a100.html Seems the unit wants under 13 V; a direct cable should then not be used.
  11. Externet

    Charging a Tablet off of Car Battery

    Check if Acer sells an option cable to power from a car cigarette lighter. If such option cable has some bulky part in it, tells the voltage from the car must be regulated to 12V to feed the Acer unit. To build it, you would need a low drop 12V regulator IC, cable, connectors and put it...
  12. Externet

    electronic sensor project

    A 3 V battery will not turn bright a blue led; and if it barely does while the batteries are new, will not sustain much longer. If you are willing to use more volts, it can work. For limited skills in electronics, this is a good place to check for your request ...
  13. Externet

    double the voltage half the amps...

    Get another cell of those and connect it in series; will double the voltage.
  14. Externet

    Need Help Surge Protector

    The surge protector did its job; dying to protect the equipment. That is what they are supposed to do instead of ending with an electronic equipment cemetery. You should be happy with the event. If it was 1 month old does not matter. It is meant to die at any time, lucky you. Replace the...
  15. Externet

    Starting out in Electronics

    There is many flavors of these, choose the one you feel better with : http://www.amazon.co.uk/500-Electronic-Project-Lab-Kit/dp/B000LR9E4A
  16. Externet

    5v Regulator(s)

    Check if other of the regulators you bought outputs a little more voltage; if not, you can insert a 0.6 V silicon diode between that 4.95V 7805 ground pin and ground, it will rise its output by 0.6V
  17. Externet

    How to wire a 12V DC set of CCFL lights, into my car audio system

    Came across another site : ----> http://www.crazypc.com/products/casemods/lighting.htm Or can be used with a dedicated small audio power amplifier, around 10 watts
  18. Externet

    How to wire a 12V DC set of CCFL lights, into my car audio system

    Perhaps am wrong, but I assumed these type: http://www.gadgettown.com/2-Car-Interior-Neon-Light-12V-Blue.html They work fine even in parallel to a subwoofer.
  19. Externet

    ac adaptor output 9v -1A to 12v-1.5A

    You did not specify if the original/spare adapters output DC or AC ! Highly likely, the modem works with 5V DC internally. The defunct adapter is converted by circuitry in the modem to produce the 5VDC it needs. Chances are good to swap it with your spares; IF the defunct adapter was not...
  20. Externet

    Looking for an RC Transmitter & Receiver

    :D It is gone since unobtanium parts took root. You will come to the same deduction in a few years :( And there is no flaw in having ALL your parts instantly for an unbeatable price :D
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