Recent content by jikwan

  1. J

    sound frequency resulting from coil windings

    great post H, some quite extraordinary ideas there ive never heard before theres too much to respond to at the moment im glad to be on the forum and tomorrow i buy a few tuning forks and see if my ideas work ive learned a few things today
  2. J

    sound frequency resulting from coil windings

    this here is a simple explination put 2 s steel plates in tapwater attatch a clip onto one of the plates and the same on the other use 12v one clip is pos the other neg switch it on and youll see hydrogen gas coming from neg plate and oxygen from the pos plate this is highly combustable and you...
  3. J

    sound frequency resulting from coil windings

    that is very cool, cheap and requires next to nothing power i may end up using a pile of them. thanks
  4. J

    sound frequency resulting from coil windings

    har har har har
  5. J

    sound frequency resulting from coil windings

    the transducer as i understand it reacts to pressure and change. the object it would be attached to is completely stationary. but if its switched on and it vibrates all by itself then that would do the job in a way. it would be used as a mechanical vibrator exactly what im after is resonance...
  6. J

    sound frequency resulting from coil windings

    thanks a lot for the great replies i do realize that the more information i give about what exactly im trying to do---the more appropriate the answers will be this ive been avoiding because the nature of the device im trying to design is considered too dangerous and this may well be the final...
  7. J

    sound frequency resulting from coil windings

    does a good job but uses a whopping 10A!
  8. J

    sound frequency resulting from coil windings

    i suspect i got a whole pile more misconceptions---i dont have many electrically minded friends so, i take it that all i have to do is take the speaker wire and disconnect it from the paper that makes it vibrate that wire will deliver say, the 440hz that i require if i solder that wire onto my...
  9. J

    sound frequency resulting from coil windings

    i am thinking there is a sound that the wire makes i could record that sound and might find it to be say, 728hz and by shortening/lengthening it i ll get it to be exactly 440
  10. J

    hi everyone

    exactly right. next time i ll do just that
  11. J

    sound frequency resulting from coil windings

    appreciate the replies. this way i can understand the subject by studying the small pieces you give. if i study the text book it might take much longer heres what im trying to do i have a metal object that i could strike, record the sound and put it through a sound editor programe and find the...
  12. J

    sound frequency resulting from coil windings

    hi everyone i need to understand how to get a particular frequency from the coil winding i dont know how it works i am thinking that if you send current through a coil you ll get a certain frequency from a certain number of windings can someone help me with this?
  13. J

    hi everyone

    not completely new to electrical things i got a few questions you might consider prehistoric knowlege
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