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  1. karthikeid

    transmitter module help

    hi any circuit  that will transmit voice for 100meters range using fm but the transmitter must be small enough...
  2. karthikeid

    transmitter module help

    hi using the fm transmitter module how to transmit and receiver voice.. link for that fm module http://onlinetps.com/shop/index.php?main_page=product_info&cPath=126_127&products_id=454 pls help me to construct a circuit.... ???
  3. karthikeid

    how to test a condenser mic

    hi how test a condenser mic ???
  4. karthikeid

    IFT coil

    hi i am talking about the center of the ift is red in colour
  5. karthikeid

    IFT coil

    hi how to find the value of the IFT coil??? i c a red color plastic or an grey color how to identify it ???
  6. karthikeid

    Fm transmitter

    is there any other substitute to overcome this ???
  7. karthikeid

    LED's

    hi i need a circuit to lit 50 leds in ac voltage 230v,50Hz...
  8. karthikeid

    Fm transmitter

    hi ok chill hero999... why i am asking is that i have those components with me so that is why i was asking about that circuit....kindly help me out to do this circuit.... i cant get LM2931A...is there any substitute ???
  9. karthikeid

    Fm transmitter

    hi the circuit diagram pls check the working of this circuit...
  10. karthikeid

    not able to upload images

    hi i am not able to upload pictures to the threads.. the info. displayed is The attachments upload directory is not writable what to do ???
  11. karthikeid

    Fm transmitter

    hi some of the components are not presently available to me to build that circuit... but i have attached one more file can u provide me some suggestions on it...  i am not able to attach the file here saying the dir is not writable here... so i have uploaded in rapidshare sorry for the...
  12. karthikeid

    Fm transmitter

    hi what will be the range atleast 500m... ???
  13. karthikeid

    Fm transmitter

    hi can u provide me some other circuit that will have a good range...
  14. karthikeid

    Fm transmitter

    hi http://rapidshare.com/files/276652026/fm_transmitter.pdf.html check this circuit need some help building this one... ;D
  15. karthikeid

    Fm transmitter

    hi in this circuit http://w1.859.telia.com/~u85920178/tx/bug5.htm just change 547 which is parallel to 2.7pf, into BF494 then it is working fine
  16. karthikeid

    Single PCB Production

    hi why dont u do ur own pcb it is very simple process only. for one pcb it will cost very high...
  17. karthikeid

    Fm transmitter

    hi i have powered it by a 9V battery only...
  18. karthikeid

    Fm transmitter

    hi i have made this circuit http://w1.859.telia.com/~u85920178/tx/bug5.htm at one frequency it is working fine for a long distance but when i speak there is bzz noise nd not able to hear clearly, can u help me to overcome this problem ???  in this circuit i have used 10pf instead of 12pf....
  19. karthikeid

    Fm transmitter

    can u tell me wheather this circuit works out well http://www.aaroncake.net/circuits/fmtrans.asp
  20. karthikeid

    Fm transmitter

    hi i need a fm transmitter circuit that works properly, very urgent pls help me. ::)
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