How to build a 12-16 kHz noise generator?

[ezshereef]

hi all,

i want to build a circuit to generate noise in the band from 12 to 16 khz i want to couple this noise on a wire how can i build such circuit by the way i don't care about the properties of the generated noise all i want is to couple this noise to the wire wirless i.e. to induce the noise in the wire

 

[IanP]

Re: noise generator

Audio frequency noise generator:
http://www.discovercircuits.com/PDF-FILES/noisegen.pdf
Pink frequency noise generator:
**broken link removed**

Regards,
IanP

 

[biff44]

Re: noise generator

Any zener diode will exhibit broadband shot noise at its breakdown voltage. You AC couple it, and then amplify it (since it is pretty small).

 

[sergio mariotti]

noise generator

usually the term noise means white, gaussian distribution. But your question sound as different meaning. Do you ask for white, gaussian noise or for randomatic sparks discharge?