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  1. logan_dslasher

    Key Finder (pinoy version)

    things like that don't work here in our country. even pizza delivery is not free!! and pizza delivery is restricted only to a few kilometers.. besides, i dont have any credit card or any means of paying it Online..
  2. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    oh no!! i was just about to say that this is more like a anything-that-moves alarm than a whistle responder... YES. i still have them on a breadboard  :( and the tallest component is almost an inch long.. when i try to check its connection and slightly bump to its components, it beeps...
  3. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    the mic's volatge went up by 2V, now it's 2.2V.. but why did it stopped beeping? the noise is still present.. even before i changed r1's value, it stopped.. no matter what sound i try to produce, it remains quiet.. the only way i can make it beep, except measuruing pin5, is by...
  4. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    alright then, i'll change R1's value.. i'll let you know what will happen, and what would be the mics voltage.. hey! it suddenly became quiet!  ???
  5. logan_dslasher

    Key Finder (pinoy version)

    i can say that it was certainly a good choice! i have already spent so much time on the whistle responder that i am more familiar with it than with the key finder... besides, i don't know what piezo speaker to use for its circuit. how will i know if the speaker can be used as a microphone?
  6. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    R1 - 22K i think it's very sensitive. is there a way to lessen its sensitivity.. i think i remembered something about changing the value of R4 to change its sensitivity? this is not a whistle responder, it's a noise responder!! ehehe.. but i'm really glad it's working.. by the way, i have it...
  7. logan_dslasher

    Problems lately accessing this site

    "Problem loading page" "the connection has timed out" GREAT!! just when i finally got my project to work!!
  8. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    auidoguru! audioguru!! it's beeping!!! i don't want to touch it cause it might not beep again... from time to time, it beeps!! it's so noisy here in the internet cafe so i dont' really know what is triggering it! gamiing sounds like explosions and special FX.. there's also a music being...
  9. logan_dslasher

    Key Finder (pinoy version)

    because this circuit requires a piezo speaker, i decided to go back making the whistle responder circuit. i believe that the whistle responder is better because it has its own microphone unlike with the key finder circuit where the ear and  mouth of the circuit is its piezo speaker..
  10. logan_dslasher

    Problems lately accessing this site

    i was surprised audioguru mailed me.. it was really nice of him to do that! thanks for the help? what was wrong with The e-Lab anyway? i'm glad it was fixed already.. this is my  only source in making my thesis...  ;D tahnks a lot..
  11. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    i am working again on the whisatle responder circuit to be used in my thesis.  i have finally convinced my adviser that this is a better one compared to the key finder. we have tested the circuit this afternoon and he concluded that my IC is damaged. i have replaced it already and guess what...
  12. logan_dslasher

    Key Finder (pinoy version)

    ow, one more thing.. mylar capacitor codes are read just like in a ceramic, right? the first two digits as their values and the third one as the multiplier.. then its unit is in pF.. is that right? are there other wayz they are read?
  13. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    the buzzer continued beeping. even for two minutes, it didn't stop. sorry i havent done that..
  14. logan_dslasher

    Key Finder (pinoy version)

    where could i get a piezo speaker? let's say i can't  buy one on an electronic shop because it is not available... how about the buzzer/speaker from the melody circuit of a Christmas light? or ma ybe the one from those greeting cards that plays a song as son as you open it?  are those speakers...
  15. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    what is exactly the reason why the buzzer  kept beeping as soon as power is suppl ied?  how could i solve that? 
  16. logan_dslasher

    Key Finder (pinoy version)

    i am starting to put hte parts on the breadboard.. about the buzzer.. it's supposed to be a piezo speaker right? so the one i had from the alarm clock would be fine? why can't i use the piezo buzzer?
  17. logan_dslasher

    Key Finder (pinoy version)

    i already completed the parts except for the tantalum capacitor.. an electrolytic would be fine? OK, i'll use an electrolytic instead.. the same  with the transistors.. i found a  2SC3622. 10V? would 9V be fine? i'm planning to use a 9V battery (the rectangular-shaped one)
  18. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    i tried working on the circuit again. guess what? the moment i turn on the power, the buzzer kept beeping.. i tried to measure the circuit's voltage.. and found out that the transistor's base has a 0.5V which should be 0V.. i think i have to replace my transistor again. i have asked a friend to...
  19. logan_dslasher

    i need help extending the keys finder project. can someone help me out????

    i really didn't quite understand your last two posts ;D, audioguru.. but get this. i have already found a piezo buzzer!!!! it's almost the same as what you have shown.. it beeps pretty loud with 3V.. i went back to the old circuit, the original one hoping that with the right buzzer, it would...
  20. logan_dslasher

    Key Finder (pinoy version)

    i wasn't the one who changed those values. those were the specifications indicated in the copy given to me by my adviser.. I am planning to make the two of them.. if one doesn't work.. i'll try the other.. i have already purchased those parts.. and also the one indicated in the lab. problem is...
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