>> Check out a L298 DUAL FULL-BRIDGE DRIVER made by ST.
>    already checked. Nice chip, not cheap.
>    An L298 costs R$13.60.
>    2 x TIP31 + 2 x TIP32 + 4 x 1N4007 + 2 x BC547 + 2 x Resistors =3D=
 R$3.90
>    US$1 =3D R$2.50 (aprox.
>    So, I want to build one discrete H-Brige on the PCB.

        Edson, in Brazil the L298 is EXTREMELLY expensive. Dunno why. Better go to=
 a "ferro velho" (how the hell americans call this?) and buy an old=
 printer, like the Epson or Grafix ones. You'll find 2 L298, 2 L296 and=
 some nice parts. They sell it for cheap, sometimes less than the L298 :o)


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

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