AVR-Chat

Hi Zack,

Cant say I fully agree, I cant recall the exact detail, but I have
built a voice-AM transmitter without any coils, I went something like:

Buy a 4-pin crystal oscillator outputting square waves at the
frequency of carrier your looking for, I believe mine was 1MHz, then
vary the supply voltage depending on the "voice" input voltage.

Cheers
Hein B
Auckland, NZ

--- In AVR-Chat@yahoogroups.com, Zack Widup <w9sz@...> wrote:
>
> 
> It can't be done. You will need a coil at least for your
antenna/matching.
> 
> How much power are you talking about?  What range do you want to cover? 
> For what purpose?  What frequency?  What are the laws in your country 
> regarding license-free transmissions on that frequency?
> 
> Inquiring minds want to know, especially this RF engineer.
> 
> Zack
> 
> On Wed, 25 Apr 2007, azza eldessoky wrote:
> 
> > please friends,can any one  send me a circuit design for AM
transmitter or receiver without  any coils .
> >    thanks alot 
> >        azza 
> >
>