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  1. Replies
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    2 phase

    2 phase is used in selsy systems for positioning control or as a feedback in ac/dc drives for speed or position control. The selsyn has two windings one is R1 & R2 the other winding is labled S1 -...
  2. Looking for a Quadra Fire control box 812-4940 schematic

    I am looking for a schematic for a Quadra Fire control box 812-4940 made by pantrol 2301132 rev j. Anyone know where one can be found. I have a unit (control box) that needs repair a schematic...
  3. Replies
    4
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    929

    New Forum Member

    Would like to say Hi to forum members. Do a lot of internet surfing and ran across this forum thought I would join I am a Senior Technical Training Insturctor by Technical I mean basic electronics,...
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