It's very hard to document specific equipment details from Smile as all we have is limited photographic evidence and some few interviews (most of which don't deal with this topic at all). It's still worth making an effort.

By the way, Brian had bought two amplifiers in 1967 for 20 quid each but on the surviving photos he's only using one (maybe they didn't play Blag live?). Back then he had no spare guitar.

Percussion

Drum kit [educated guess based on photos]
  • Premier 26" x 14" bass-drum.
  • Premier 14" x 7.5" snare drum.
  • Premier 16" x 16" and 20" x 20" floor toms.
  • Premier 12" x 12" rack tom.
  • Zildjian 15" hi-hats.
  • Zildjian 16" and 20" crash cymbals.
Roger's Premier kit

Bass guitars

Bass + bass rig
  • Vox electric bass [a Fender Jazz imitation]
  • Fender amplifier [unknown model]
bass guitar

Guitars

Guitar + guitar rig
  • BHM six-string electric guitar
  • 1 x Vox AC30 amplifier

Keyboards

Keyboard [played by Chris Smith]
  • Selmer Capri portable electronic organ