*m*e*n*u | 206
*G *m*e*n*u-09i | Plans-IAC
on this page:
The Model 206
control unit drawing was made in February 2007. It is very similar to
the previous Model 205 (aka Model 165) design, except for the following
- A 2nd rheostat was
added, so there is now one rheostat for controlling voltage (speed) in
the slowdown block, and a 2nd rheostat for controlling voltage in the
startup block. This was done with the idea, that if operating DCC, the
startup rheostat could be adjusted for full voltage, and the decoders
could be adjusted for smooth acceleration.
- This Control Unit is
slightly narrower and longer (now 5"x14.5" vs 6-1/4"x13" previous
model). When used with a 12" wide track unit, the overall width of the
whole assembly is about 12-1/2", as compared with a 17" width for the
previous model track unit -- see Photo 4 below.
- The control unit is
slightly lower, now about 1-3/4" high at the rheostat bracket, vs
2-3/4" high for the previous model. To cover it up, you might be able
to use a loading dock instead of a building.
Photo 1 - Model 206 Control Unit
Photo 2 - Model 206 Control Unit - viewed
from other side
Photo 3 - Closeup of Rheostat bracket.
On this unit, the hole for the power-indicating LED has been left empty.
The lights on the Shiloh Signal's target signal can be used to indicate
power -- see next photo.
Photo 4 - Control Unit mounted on a Track
The whole assembly is about 12-1/2" wide.
The following figure, Logic
Diagram for Automatic Switching Block, explains how this unit
controls 3 trains on the same track. The operation is a combination of
the Automatic Block and the automatic passing siding.