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7060Re: [z_scale] Pneumatic turnout motors

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  • Bill Hoshiko
    Nov 3, 2001
      Hi Dave,

      Those pneumatic turnout machines have been around since the 1950s.

      People who use them swear by them. They are quiet and, since they do
      not snap like a solenoid, they are much friendlier to the solder joints
      in your switch.

      The only negative that I have read about them is that you cannot have
      more than one switch to control one turnout. This would be a problem
      only if you have more than one control panel. That is, if you have a
      mainline control panel and a yard panel and need to control the same
      turnout from both.

      If you need to power route through your switch machine you would have to
      make your own electrical contacts but that should not be much of a

      With a little work you could even build a little switch stand to
      indicate which route the track is aligned to.

      If you are building a module or a portable layout you will have to take
      along an air compressor with a tank. Without a tank, your air
      compressor would need to be chugging all the time.

      Another consideration might be the method used to control the turnout.
      I think that you need to twist a valve open or closed. Some people
      prefer throttles with knobs over push buttons. Others prefer to control
      their turnouts using a lever switch instead of a push button. Maybe
      turning a valve on and off is not your idea of throwing a switch.

      I hope this helps.

      El Toro
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