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11th April 2008, 02:29 PM
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 switching from pc how can I ,using properly a pc sound file(3,5mm electrical signal coming from the pc) with 2 diferent frecuencies connect 2 diferent circuits,once the signal reach some frecuencie levels like 2khz ...and is switched a circuit#1....once is the other frecuencie like 4khz..the other circuit#2,as long as the frecuencies are playing their roles,the circuits are connected,the electrical signal coming from the 3,5mm pc switch maybe with a micro-rele serie 117-1-a-52/d ,or transistor based?does anyone know exactly the way it can be done | |
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