I found a link I will attach later - very strange that I was researching this just the other day.
By 1975 Gilmour was using as many as 2 Fuzz Faces at a time. He also loves the Binson Echo Plex, Electric Mistress Flanger, and the Big Muff. I feel like I hear the Muff on there.
I know Gilmour pulled out a TELE on Dogs.
The other thing to note is that Gilmour got into using an Alembic Bass Preamp (of Waters) for use on his Guitar rig as a pre during this era (John Frusciante also likes this trick).
On the Discussion of Hiwatts, check out the Kinks live - they used Hiwatts and got a good Plexi growl. I love the tone of Hiwatts, esp with a little pedal action for gain the front. The clean tones are beautiful. I would love to hear it with a Fulltone OCD in front.
Anyone here want to comment on Fane speakers?