I used to SEE them at least once a week....or so it seemed!
In the '70S, it seemed they were here in S. Florida all the time. I think Travers either lives or works out of the Orlando area now.
Anyway, I still rock out to Travers & "Mr Thrall"...Go For What You Know is one of those Great all time albums. And I have a Greatest Hits CD with "Snortin Whiskey..." on it.....I listen to that pretty regularly too.....
As far as gear goes, I remember Pat playing either an SG or an LP Double Cut-away back then. Most recently, I've seen him play a variety of LPs & PRSs. I don't recall what Thrall played, but I seem to remember him playing a strat back then.........
For amps, I would guess Marshalls...maybe Hi-Watts...
Effects...........no clue, but you might check out this link.
http://www.pattravers.com
Hope I helped a little........................