electro

  1. melvin

    12 V DC: Matching resistance/ohm between devices

    In a 12 V DC system I have a fuel tank and in it a measuring device that transmits its views of whether the tank is full/half or whatever through a signalling cable to an analogue gauge. The measuring device operates in the range 10-180 ohm. The gauge operates in the range 0-190 ohm. Some...
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