@Mike23 posted:...
I am using a KW transformar which would mean- to get 14V I need to attach a wire to BOTH (D) posts. I'm only guessing at answers so- I don't know anything- Is there a hook-up for say- Any- two wired accessory- that won't be constantly on? Or just say no and use track power only.
I have not used a KW but in looking at the instruction manual diagram, I'm not sure what you mean by using BOTH "D" posts to get 14V. It seems to me you get 14V by using C-D.
In any case, if I understand what you're trying to do, you want to use the KW's fixed 14V to drive the banjo AND trigger the banjo using the isolated-rail method. The "problem" is the isolated-rail method requires one side of the 14V to be the same the the outer rail (U post). The diagram clearly suggests this is NOT the case; that is, the C and D posts are NOT the same as the U post.
This may be wasteful of your 2nd throttle, but you could dedicate the variable U-B throttle voltage to be your Banjo voltage. In other words, the U-A throttle is the variable 6-20V control for your trains. But the U-B throttle is set/dedicated to 14V for your banjo (and any other 14V accessories). The 2-wire banjo signal is powered by the B post and the insulated-rail section (equivalent to the U post).
