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  1. ante1

    Infrared Activated Switch

    Hi, hamoodyjamal, I think you are looking for a IR Beam Break Detector or a IR Barrier, try one of these links and then tell me if I’m right: http://www.electronic-circuits-diagrams.com/alarmsimages/alarmsckt19.shtml...
  2. ante1

    Automated waste segregator

    Hi Jake, This sounds like a software problem! ;)
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    Switching power supply

    Hi devilson, Welcome to our forum, You have to be more precise, I do not know of any mosfets which are NPN or PNP. Mosfets are usually P-channel or N-channel and bipolar transistors are NPN or PNP. You do not give any data for input and output voltage so it’s not easy to understand what you...
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    Trouble with UPS (Help!!! Urgently)

    Hi quynh, Welcome to our forum. This could be a hard nut to crack without a circuit diagram. Have you found any broken or burned parts and have you checked the batterys and fuses and so on?
  5. ante1

    VCR HEAD

    Hi source, I am not sure about this, looks like some special application for a VCR head! Are you trying to run this as a separate motor for a project? Sorry, not much help !
  6. ante1

    NEC monitor help!

    Thanks Mike, you’re the best! ;D Mike just fixed the problem as always! Here are the pictures:
  7. ante1

    Rear projection tv question

    Hi seeth, Welcome to our forum. If it’s just a small amount, don’t worry just don’t let your dog lick it because it is glycol leaking and your dog will be very sick! :o
  8. ante1

    LIGHTENING STRIKES

    Hi Steven, If you try to take pictures of a thunderstorm at night it’s easier, just let the shutter stay open and you can get several lightning bolts on the same pic. That is if your camera allows you to keep the shutter open continuously or for a longer fixed time interval sometimes 4 or 8 sec...
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    VCR HEAD

    Hi source I don’t understand what you mean “to work a Video head” and “Coils how to take voltage to the another side”. At least I know what a video head is! Can you try to be more specific? 8)
  10. ante1

    h-bridge dc motor control circuit Reworked

    Hi Heath, I am glad you to hear you are making progress. I am sure I speak for many when I say I would like to see some pictures and know a little about the background too when it's all good and ready! ;D
  11. ante1

    SONY SERVICE MANUAL

    Hi David, I don’t know about Sony but many manufacturers’ manuals aren’t cheap! In some cases the values of the apparatus you are trying to repair don’t justify the prize! If you own a repair shop and might encounter half a dozen similar products it can be a decent investment but for the...
  12. ante1

    NEC monitor help!

    There was supposed to be pictures in my last post!!  >:(  >:( I got a message “UPLOADER IS FULL” when trying to attach the pictures; they weren’t anywhere near the maximum allowed size so I don’t know what’s wrong here????? ???
  13. ante1

    NEC monitor help!

    Hi Bjorn, Thanks for your suggestion; I have had a close look now at the intestines of the monitor. And yes there are quite a few parts for the backlight! To start from the beginning: If I look at the display in a certain angle I can see the picture, the menu settings seems to work fine but no...
  14. ante1

    NEC monitor help!

    Hi All, I could use some help with my NEC Multisync LCD 1920 NX. The problem is the backlight doesn’t work and I haven’t a clue; a service manual and/or some good advice will be greatly appreciated! Please! PS. You guys are the only thing between this monitor and a dumpster! ;D
  15. ante1

    tachometer

    Hi audioguru, If you can Google it; why would it be illegal to post???
  16. ante1

    LIGHTENING STRIKES

    Hi Steven, Thanks for the whether link interesting reading and fantastic pictures, this confirms that there are both positive and negative lightning. Scary thing “300,000 amperes and one billion volts!” :o  :o  for how long period would you need this to fully charge a car battery? ;D
  17. ante1

    want free software

    Hi walid, I don’t know exactly which type of electronics software you are looking for but this site covers many areas and most of them will run under W95. http://www.tech-systems-labs.com/freesoftware.htm
  18. ante1

    Circuit Symbols

    Hi All, I sometimes draw circuits with the help of Windows”Paint” and I know that some of you do too. I use cut & paste and rotate to get it right and it works pretty well. I have collected a few circuit symbols which might come in handy and here they are: Parts-symbols.rar
  19. ante1

    tachometer

    Hi Alun, I agree!  8)
  20. ante1

    LIGHTENING STRIKES

    Hi prateek, You will need a high voltage probe for your multimeter and I recommend rubber gloves! ;D   I think the polarity of the clouds towards ground (earth) must be considered as a dual power supply. Some are on positive side and others are on the negative side of earth potential. But...
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