ARLA/CLUSTER: Oscilador de CW

[CT2FZI IM58KR]

Boa tarde Joel,

Que tal este:

http://www.circuitstoday.com/cw-practice-oscillator

A circuit diagram that can be used for the generation of CW Morse code is
shown here.This circuit can be very useful those who would like practice Ham
Radio.The circuit is nothing but an a stable multivariate based on NE
555.The frequency of oscillations of the circuit depends on the components
R1,R2 & C1.The circuit can be powered from a 9V PP3 battery.


<http://1.bp.blogspot.com/_kl-7x84Cuu8/Sq-yNGafF2I/AAAAAAAAAaA/Yq3GUmPMsd4/s1600-h/cw-practice-oscillator-_circuit.JPG>



Notes.

* The POT R2 can be used for frequency adjustments.
* POT R3 can be used for volume adjustments.
* The switch S1 can be a Morse code key.



73 de Luis, CT2FZI

http://www.ct2fzi.net








2010/9/20 Joel Lobão <joel.lobao  gmail.com>

> Boa tarde,
>
> alguém tem um esquema de um oscilador fácil de construir e barato?
>
> A idéia é usar esse oscilador no Jamboree no Ar para que os escuteiros
> troquem mensagens em morse entre eles.
>
> Obrigado
>
> 73 de CT1HXB - Joel Lobão
>
> _______________________________________________
> CLUSTER mailing list
> CLUSTER  radio-amador.net
> http://radio-amador.net/cgi-bin/mailman/listinfo/cluster
>
>
-------------- próxima parte ----------
Um anexo em HTML foi limpo...
URL: http://radio-amador.net/pipermail/cluster/attachments/20100920/e06fe79d/attachment.htm