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  1. hakyman

    +/- reg

    hi everybody , me and my friend have designed( actually changed smth on a schematic:) a reg for non simetric transformer the point is the transformer connections. its workin ok now, but i dont have a chance to measure or see all effects on output, is that kind of connections has a disadvantage ...
  2. hakyman

    CA3237

    Hi i need to learn if there is a replacement or similar part to CA3237(IR preamp). cause i cant find it around thanx best regards
  3. hakyman

    sound Card mic input standart

    hi everybody i'am searching for a standart for sound cards but i cant find smth about it. i read much tittles about it but there is no standart  i could find. is there a standart for sound cards for Acceptable voltage to mic input?????? or what is the worst sound cards max aceepptable voltage...
  4. hakyman

    3E 1001 D phototransistor

    hey guys ; i have got a little problem here , i bought a phototransistor but i cant find the datasheet . the only thing writed on the device is ; 3E 1001 D , i ahve searched in net and datasheets but i cant find something. i think the numbers are explanation numbers its a 3 pin phototransistor...
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