ohh my favorite band! Page used Marshall amps all the time the guitars are the Tele, Doubleneck SG(i can't remember but i think it was epiphone) and the LP,s. As with Plant and lemons as you know Led was known for their sexual antics (ie the fish)and the lemon is a sexual metaphor that he like to sing because he could say "squeeze my lemon till the juice runs down my leg" so he could slip that by censors.Hey if you need Tab's for Zep I have the huge tab book from superhype publishing. Later on Led heads.