Leslie 825

Ok, my next bad adventure involves a Leslie 825.
Anyone ever use one of these? I have access to a 147 and a 122, but they are old and they remain on the organ(s). This 825 can be used with a guitar as long as you have the preamp combo pedal, right?
I don't even want to look at it until I figure out what I can do with this thing.
Anyone ever use one of these? I have access to a 147 and a 122, but they are old and they remain on the organ(s). This 825 can be used with a guitar as long as you have the preamp combo pedal, right?
I don't even want to look at it until I figure out what I can do with this thing.