7068Re: [z_scale] Pneumatic turnout motors
- Nov 3, 2001Bill,
Thanks for the response. Del-Aire apparently makes special distribution
centers for controlling multiple turnouts with a single control. They also
make toggle and pushbutton controls, and even have electrically-activated
switches for DCC and remote operation. It seems the technology has come a
long way since the 50's...
At 06:47 AM 11/3/2001 -0800, you wrote:
>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.
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