Doc-
Without getting into all the minutiae, my hunch is this (and I could be completely wrong here
):
- Your inductor is original, but differs from mine (probably Gibson just using what they had in the parts bin)
- The black wire is definitely for ground
- Your red and green wires offer two different inductor values, unlinke mine - which only offers one (one wire).
- Either the red *or* green wire could be used as your other (non ground) connection - and each would probably result in a different tone for the choke circuit. (I suspect one of those wires gives something like half the inductance value of the other).
This pic from Jules' site shows more of what my inductors look like. I remember the EB-2D inductor being similar to my EB-3, in terms of only having two wires coming out of the tin:
What I would suggest is, when the time comes: wire it up and test it outside of the bass first, comparing the tone to your other EB-2, and let your ears be the guide of which inductor connection - the red or green wire - to use permanently.
Hope that helps clarify my thoughts. If you really want to get a headache, just think of all the wiring and tonal possibilities using a switch (maybe a rotary, like these L6-S switches I bought! Give it an ES-345 vibe...) that could exploit all the sonic options in my bass PLUS this possible "extra" choke value with your inductor!
Statictically speaking, your setup time (laboring over that perfect tone) would probably start to eclipse that of most guitar players!