Bill,

A motor decoder should have no problem running a stall motor since they only
require a few milliamps.  For example a tortoise only uses about 4mA while
running and about 15mA when stalled.  The real question is why use a motor
decoder.  You want to avoid using short address 3 because that is the
default decoder address.  

The stationary decoders use separate addresses from the motor decoders so
you won't have to worry about address problems with guest locomotives.
Unless you have old motor decoders in your junk box, accessory decoders
would be cheaper per turnout.  Since you are doing a yard, you could set up
a macro so that one control input will align all the turnouts for a
particular yard track.

If I remember correctly, you are using an NCE system.  They have some
accessory decoders designed for stall motors that are reasonably priced.
Check out their Switch-It and their Swtich-8.  There are plenty of other
accessory decoders depending what features you want.

Dave Heine
Easton, PA



-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
Bill Lane
Sent: Tuesday, May 03, 2011 8:26 AM
To: [email protected]
Cc: [email protected]
Subject: {S-Scale List} Look Don - No Control Panel

After my previous post my mind wandered into what might have to be done to
revamp my S-Mod yard by replacing the not so good NJ twin coil machines with
stall motors. For those that have not seen it I built a rather elaborate
control panel for the pre-DCC days that contained everything needed to run a
complete layout. It folded up into a suitcase as well.

 

In my vein of "Keep It Simple" on my new layout I was **very against**
performing turnout control functions from the DCC handle. But for a module
that is now going to be DCC only forever, I thought about using regular
motor decoders to run the switch machines. They are cheap enough and easy to
get. Further, I have no experience at all with accessory decoders. The
thought of using DCC track power to run the switch machines through motor
decoders was at least momentarily interesting and a viable solution. It
keeps the "stuff to carry" to an absolute minimum. The stall motors are
supposed to be a low current draw. There would be no need for a panel or
even a turnout motor power system. You would have to go through the snap
switch/extra contact Olympics to power the frog polarity via the movement of
the switch machine which could be tedious and annoying. I would ID the
turnouts with a number next to them on the layout. The only down side I
could think of is the possibility of someone else having a loco address of
01 to 19. (19 turnouts on the yard module)  I only have one 2 digit loco
address on my B&O Docksider. In my own captive world that would not be a
problem. Otherwise, select loco, pop in the turnout number and reverse. All
pretty simple in concept and execution.

 

 

 

Thank You,
Bill Lane

Modeling the Mighty Pennsy & PRSL in 1957 in S Scale since 1988

See my finished models at:
 <http://www.lanestrains.com/> http://www.lanestrains.com
Look at what has been made in PRR in S Scale!

Custom Train Parts Design
 <http://www.lanestrains.com/SolidWorks_Modeling.htm>
http://www.lanestrains.com/SolidWorks_Modeling.htm

PRR Builders Photos Bought, Sold & Traded
(Trading is MUCH preferred)
 <http://www.lanestrains.com/PRRphotos.xls>
http://www.lanestrains.com/PRRphotos.xls 

***Join the PRR T&HS***
The other members are not ALL like me!
 <http://www.prrths.com/> http://www.prrths.com
 <http://www.lanestrains.com/PRRTHS_Application.pdf>
http://www.lanestrains.com/PRRTHS_Application.pdf

Join the Pennsylvania Reading Seashore Lines Historical Society
It's FREE to join!  <http://www.prslhs.com/> http://www.prslhs.com 
Preserving The Memory Of The PRSL

 



[Non-text portions of this message have been removed]



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