Or in the early days.
Well either way, its pretty much the same for both.
On their first album he used a Fender Tele with a small 10Watt Tube amp cranked all the way in the studio. For Zeppelin 2 and on he pretty much always used a Gibson Les Paul with a 100Watt Marshall Stack. However in the studio he usually used the 10Watt amp cranked.
Electric Guitars are the inspiration for cries of "Turn that damn thing down"-Gibson website