>    Alex, you don't want to use a transformer because of it's costs or to
>save weight and/or space?

        It's a matter of space. Note the circuit is completely isolated from the=
 operator (optocoupler).

>    If cost isn't your problem, I would suggest you to buy a=
 transformerless
>suply for 24V and step-it-down to 5V with a swithed-regulator like LT1173.
>You can use an small transistor to switch the relay from the PIC output=
 and
>use the output from the LT1173 to power a 5V circuit up to about 300mA.
>    LT1173 isn't cheap at about US$3.40 in Brazil.

        Nah, I need it to be as small and CHEAP as possible :o( Any sugestions? ;o)


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Alexandre Souza
taito@terra.com.br
http://planeta.terra.com.br/lazer/pinball/

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