Do you guys know what gear these guys used?

[Country Boy Shane]

Almost sounds like page has the smallest millesecond of a delay in there with little feedback. Sort of what an amp sounds like in small ambient setting.

[NitroLiq]

Damn I knew it. I thought it was the MXR flanger because you can set it manualy as well but it didnt seem right that Page would have an MXR?

Well, I know he used to use the phase 90 live in the late 70s. Also used the and old eventide H949. I believe Lifeson was big on the electric mistress flanger around the "Farewell to Kings" era (think Freewill)...his big thing in the early 70s was the Maestro PS-1A Phase Shifter which is one of my favorite phase shifters...think all the phasey 2112 stuff and john paul jone's wavering rhodes on "no quarter" live.

You guys might like these gear links you haven't seen them before:

the led zep equipment list:
http://www.led-zeppelin.org/reference/index.php?m=gear

Gilmour (The Wall):
http://web.tampabay.rr.com/richm/ggg0003.htm
http://www.gilmourish.com/wall.html

And...dan's correct on the Goldtop > board > amp. From an interview:

GS: Do you ever cut guitar parts direct into the board?

DG: Not very often, but it has happened once in a while. The solo in "Another Brick in the Wall, Part II" was done straight into the board. After it was recorded, the signal was then put through an amplifier to add that kind of amp tone.