sambear,
The hex frog juicer is for wiring and controlling the ISOLATED frog. It allows the sensing of needed polarity and automatically fixing the frog polarity (based on power short if set wrong). The track power bus is wired to the input of the hex frog juicer, and the six available circuits go to six separate isolated frogs. Since the power and short sensing is performed by the hex frog juicer on each of the six circuits, it is not really important which of the power bus wires goes where into the juicer. (It is important you have consistency with the track and turnout wiring from the bus to the rails). NOTE: you must be using electrically isolated frogs when using a hex frog juicer .
The power for all the rails of the turnout (and track to and from) still require powering from the track power bus. Yes , I'd recommend soldering the rails connections (and the frog wire connection as well).
Color wiring diagrams are on the Tam Valley Depot web site:
http://tamvalleydepot.com/products/hexfrogjuicer.html-ed-
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-ed mccamey-
COSLAR RR -
http://www.coslar.us/NMRA Standards and Conformance Department
PROTO & FINE Scale Coordinator
I estimate I have about 5 pounds of coupler springs somewhere in the vicinity of my workbench.