Very informative couple of posts from Jon R and Jeff M and I stand corrected again, this time on the "Super 60" designation (which should have been clear to me as erroneous since the Blues For Allah Weir's house shot show 4 6L6 tubes burning.)
but I do kinda wonder about this:
jonarobb wrote:For most of 76 the boogies were bookended by a pair of custom Alembic 2x15's left over from the wall of sound.
In at least 4 shots on my PC, 7/76, 8/76, 10/76 and 5/4/77 Garcia has two 2x12 WOS cabs
stacked (Bobby has what looks like the first 3x12)... in the 9/28/75 pics, Jerry appears to use four 2x12 cabs, bookending the Boogie/2300 stack. There are sometimes 15 cabs near him onstage but I am fairly positive those are for bass and/or piano monitors, as seen well into the 80's. 2x15's were not used in the Wall, they were all 1x15's.
Back to the pickups
, one of the TB1000A's that I helped purchase for Ruk actually had Super Distortions in it... sounded just like the other Beans to me, and was/is one of the nicest in his collection.