30 Mar
2007
30 Mar
'07
9:40 p.m.
On 3/30/07, listreader <listreader(a)lupulin.net> wrote:
I saw the mosquito device that will annoy younger
people, but not older people:
http://www.compoundsecurity.co.uk/teenage_control_products.html
Its pretty expensive. How would I begin to create that
from scratch? Can a sound-card generate those frequencies?
I imagine I would need a special speaker.
How about an amp?, does that also need to transmit the
higher freqs.? Is it like going from a bass amp to
a guitar amp? (and I need to keep going?)
It would likely be easiest to just make an electronic device like the
one in the article... Use a 555 timer (or other simple oscillator)
hooked up to a small audio amp, then to a tweeter.
I know, I know, not a Linux solution... ;-)
-TimH