Components, Circuit boards

So far, a list of things I’ve discovered

  • A rather large ‘old school’ torroidal transformer
    • HDB-200 – 200VA
    • JP-3163B – Stepper motor control board, 3 channel
      • Mine looks almost the same as the below one, it’s just missing the DB15 serial connector next to the parallel
      • JP-3163B Nice image
    • JP-1635A – Single Channel Stepper motor controller board
      • JP-1365A
      • TB6560AHQ – stepper motor controller chips
    • JP-1482 – Variable speed spindle driver
    • 57HD0401-15SB BiPolar Stepper motors
      • 57mm, so, NEMA 23 size
      • HD = 1.8°  Step Angle
      • 0 = Fuselage Length Code (57HD – M) – 0 in this case – 41mm shaft
      • 4 =
      • 01 =
      • N =
      • Can anyone read the text on this website? – it has more data

Seems there’s really no accurate information out there for this little thing. A good summary would be though ‘a bit crap’…..if you compare it to all the others available, every website suggests this is the lowest possible spec in its size. Maybe time for an upgrade 😛

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