On the album I used strat style Jackson guitars with EMG humbuckers, the 81 85 combo? I think it was not sure which one was in the bridge position, but its the stock way they put them. I also recorded a bulk of the album with a Charvel strat, same EMG humbucker. Then I used a Boss OD-2 overdrive pedal, the yellow one (sometimes an MXR phase 45 too). Thats about it for stomp boxes. for heads I used Ronnie's Marshall early 80's JCM800 heads (two or three of them? one channel left and one channel right in the stereo mix as you hear the album). Marshall 4X12 speaker cabs loaded with the 75 watt speakers too. That was the album set up. As for live, the same guitars, but I used a marshall 9000 pre amp into a VHT power amp and same 75 watt Marshall cabs. I also used to run a Yamaha delay unit, an old rack mountable one , that split the left and right channels by about 50milliseconds or so, like a slap effect between the left and right sides of the cabs, to thicken the sound.