Hi Edson,

        At http://www.national.com/an/AN/AN-146.pdf this is an old
appnote for sending FM through the AC line but it specifies line
signal xformers. I used these with appropriate caps to tune to the
x10 signal frequency.

        The part numbers have changed since the appnote. The parts I
ordered many years ago were TOKO RAN 10A6729 for the Tx xformer, and
RAN 10A6845 for the Rx xformer, they may gave changed since then?

        These may be the same ones Jinx had mentioned.

Heinz

At 6:24 PM -0300 8/18/01, Edson Brusque wrote:
>Hello,
>
>     I'm doing some experiments about serial communication using the mains.
>As you can understand, I'm wanting to do something similar to X10, but with
>my own protocol.
>
>     Someone here can point me to places on the web with squematics and
>sugestions of simple circuits that can inject a signal like a 20KHz sine
>wave on the mains that could be received by another device?
>
>     Thanks,
>
>     Brusque
>
>-----------------------------------
>Edson Brusque
>Research and Development
>C.I.Tronics Lighting Designers Ltda
>(47) 323-2138  /  (47) 9993-6453
>Blumenau  -  SC  -  Brazil
>www.citronics.com.br
>-----------------------------------
>
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