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  1. ante1

    Simple but sophisticated lab Power Supply

    I think this device is advanced compared to a 7812. As Muhammad says there is no need for a transformer so compared to older style powersupply modules thats pretty advanced. Well I don’t agree fully but I can see your point here!  ;)
  2. ante1

    NiMH Battery Pack Charger

    Very smartly put AG!  ;D
  3. ante1

    Modifying RF Light Switch

    That explains part of it! There must be a big capacitor (X1 oor X2 type maybe) and some resistor / zener diode rectifier/voltage divider close to where the mains voltage enters the unit.
  4. ante1

    Simple but sophisticated lab Power Supply

    Ok, ozzy strine then! Yeah, I see you’re a bloke from down under, should have known! ;D
  5. ante1

    Simple but sophisticated lab Power Supply

    I consider “sophisticated” to be somewhat “advanced” which I do not think this is! I also do not understand what farming terms like “agricultural” have to do with this! ???
  6. ante1

    Modifying RF Light Switch

    Hi Adam, OK, I’m kind of confused here sorry! :-[  Right or wrong; the unit works of the wall if you feed it through the DC-jack and in the wallsocket without the need of external power?!?!  :-\
  7. ante1

    CRT monitor

    This is the one: http://wwww.ges.cz/sheet/2/2sc5302.pdf
  8. ante1

    Ignition coil driver circuits and experiments

    You see, I was almost right it has two cylinders just like I said!  ;D
  9. ante1

    Modifying RF Light Switch

    Hi Adam, Ok, I got confused by the info in the radioshack link you provided? Then what is the purpose of the DC jack, could it be the power the unit from a wallwart? The pictures are not clear enough (at least not for me) to see where the tracks goes.
  10. ante1

    ANTENNA RADIATION PATTERNS

    Hi prateeksikka, These might come in handy: hxxp://rapidshare.de/files/15970792/McGraw_Hill_-_Antenna_Engineering_Handbook_-_3ed_-_Johnson.pdf.html hxxp://rapidshare.de/files/9671739/Wiley_-_Antenna_and_EM_Modeling_with_MATLAB.zip.html
  11. ante1

    Voltmeter for Solar Batteries

    Hi cynicmonster, I see no problems connecting a voltmeter to these batterys; just don’t drop your monkey-wrench on the batterys doing it! You should have the greatest respect for the current in these batterys with there low internal resistance they can produce 3000 – 5000 A easy if you short...
  12. ante1

    Convert 0-30V 3A PSU to 5A or more

  13. ante1

    Simple but sophisticated lab Power Supply

    Hi, Oh, I see! But I would not call that a “sophisticated lab Power Supply”! I would expect a lot more from such a device! :-\
  14. ante1

    Modifying RF Light Switch

    The 18Volts is for the relay side of the circuit and the battery supplies the rest of it. I think the battery might supply some of the circuit and some of it is supplied from mains this can be the reason for the 24V relay! Perhaps the circuit is made this way to save on battery current, but I am...
  15. ante1

    Simple but sophisticated lab Power Supply

    Hi, I don’t understand what you mean. Can you provide the information and circuit diagram of how to build a “sophisticated lab Power Supply” with one of these converters please? Thank you!  :)
  16. ante1

    Convert 0-30V 3A PSU to 5A or more

    Hi Kain! Holy Cow!  :o An outstanding job, you must have put quite a few hours in this one! I am sure most of our members would like to have one just like it! :D
  17. ante1

    Vibration!!!

    Hi microzone, You can buy cheap vibrator-motors here: http://www.voti.nl/shop/p/motor.html ;)
  18. ante1

    Modifying RF Light Switch

    Is this device run from a wallwart, not from power coming directly from the outlet? I doubt that the circuit will work properly in all stages with a 9v battery. I don’t believe they would use different voltages for the RF circuit and the relay latch circuit, it would be unnecessary complex and...
  19. ante1

    Modifying RF Light Switch

    Hi Adam, Welcome to our forum! The “metal tab / electromagnet” as you call it is a relay. How about the black thing on the side, is it a DC jack or am I wrong? Can this be a way to power the unit, or is it used for something completely different?  :)
  20. ante1

    Current limit delay

    Perhaps an R/C link between pin 4 and 5 would do it.
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