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  1. mixos1

    Led display Digital Voltmeter question

    blacksheep: you can use this Voltemeter as ammeter also using the connections see below: You connect the ammeter in series with the load and voltmeter in parallel with load. To take a current measure there must be a load connected :D Also you can read this...
  2. mixos1

    [CONTEST] WIN a Digital Multimeter - FINISHED

    Why let your projects lying in a corner of your hard disk? Make them available to the world... ...and enter the chance to win an auto range digital multimeter Submit your project to [email protected] until 21/4/2004 with your name and contact e-mail address. Files are preferred to...
  3. mixos1

    Led display Digital Voltmeter question

    Hello Gusk4x4 If you use the PCB, this voltmeter will work very nice. There are some errors at the schem and maestrodamuz has poster here the corrections along with some modifications to measure AC exept from DC voltages...
  4. mixos1

    control RELE by parallel port of pc

    Check this project: The 8Way Relay Board http://www.electronics-lab.com/projects/pc/005/index.html If you develop a new software, share it with us!
  5. mixos1

    Flashlight without batteries

    Hi faris :D , Welcome to Electronics Lab Community!! What exactly will be the power source? Something like this: Dynamo Powered? http://www.campingsurvival.com/dynflaswitba.html Shake Flashlight http://k3www.com/shake-flashlight.html Faraday's Principle (the same principle with the above)...
  6. mixos1

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

    Yes right FireFly :D, that's what we are trying to do with this power supply right now, to make it reliably live up to its specs !! The transformer is good to be 4A or even 5A Staigen recommended a high value capacitor, something like 10000uF/50V if you can find one. Otherwise you can use some...
  7. mixos1

    Making PCBs with magazine's paper

    Billy you can freelly start a new topic: Home made etching tanks. We have to discuss many things on this.
  8. mixos1

    Block Caller ID

    Then the only choise is to enable PRIVATE number from your local telephone line provider. This is a feature that most of the telephone providers offer for free or for a small charge depending the company. I don't think there is another way to do that
  9. mixos1

    4W FM Transmitter

    All corrections applyed to the project page: http://www.electronics-lab.com/projects/rf/021/index.html
  10. mixos1

    0-30 Vdc Stabilized Power Supply

    Hello FireFly You can buy a plastic insulator that is made exactly for the dimentions of TO-3 package transistor and has good heat transfer characteristics. The clear plastic you have is old type. You can also find other kind of matterials that are like rubber . Almost all electronics parts...
  11. mixos1

    Need datashet for SKT401 (obsolete Audio module)

    STK401 is pin compatible with the next models STK401-020 and STK401-050. The difference (with a fast view at datasheets) is the output power and max supply voltage. Are you searching a specific info for STK401-000? http://www.datadart.com/al/sanyo/STK401-020.pdf...
  12. mixos1

    Frost Alarm

    For fast reference check the schematic I attach. The rest of the pins are not connected.
  13. mixos1

    FREE Catalogue

    This company offers a CD catalog for free: http://www.amplicon.co.uk Have you found any other?
  14. mixos1

    Inside a TO-3 Transistor case

    Ever wondered how a TO-3 transistor is from inside view? See below:
  15. mixos1

    LEDs or Lamp Sequencer

    Here is a simple 10 channel light bulb sequencer circuit which you can build up to decorate your house. OPERATION The circuit consists of 2 sections: 1) Oscillator: The oscillator is built around IC555 wired in astable mode. The frequency of this oscillator is around 1 Hz (or slightly less...
  16. mixos1

    looking for a crystal

    Check here: http://www.dannell.net/Merchant2/merchant.mv?Screen=PROD&Store_Code=DE&Product_Code=121104 http://www.donberg.ie/descript/1/14745mhz.htm
  17. mixos1

    Block Caller ID

    What exactly you want: 1) your phone number not to send to the person you call or 2) to block the incoming number (for displaying at the CallerID) that calls you?
  18. mixos1

    USB hard drive - microcontroller

    Take a look here: USB to EIDE Converter http://www.electronics-lab.com/forum/index.php?board=13;action=display;threadid=155;start=msg479#msg479
  19. mixos1

    Diodes for Infrared Gate

    What you need is two "infrared LEDs" as mozikluv noticed... they look like a common led diode in clear plastic or violet color (see attachment) but they emmite light you can't see with eyes because it's infrared... Is this helping you? Did you finally understund it?
  20. mixos1

    Serial IN,Parallel Out

    BU2050F 8-bit serial in, parallel out driver IC 74HC/HCT595 8-bit serial-in/serial or parallel-out shift register with output latches 74F164 8-bit serial-in parallel-out shift register
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