I am at the point of gluing down the rails inside the roundhouse. Can anyone recommend the best way to do this? I thought at one point I read that Ted Culotta in his Essential Freight Car articles was mixing 50/50 MEK and Barge cement to fix metal detail parts to his freight cars.

Soundtraxx diagrams show a capacitor when speakers are connected to the decoder.  Maybe I missed the detail in the manual  -

Where is a description of the capacitor size and connections, with wire colors?

I am by no means an expert in electronics, being a dabbler only, and thought I would post this as it may assist others in their experiments with electronic modules.

I needed a simple and versatile setup where I could test prototypes and assembled modules and came up with this idea that works well for me.

I've got a layout with a Digitrax Zephyr Extra as the Control Station, a DC100 used as a booster and PM42 used to handle power management and a reversing section.  I'm beginning to think through the process of adding a BDL 168 to allow for block detection, signaling and eventual JMRI control.  My switches are controlled from 2 panels that use Berrett Hill touch toggles to change the tortoise switch machines.