The playing is all geddy, the OD is all Sansamp (currently, not originally), RBI or RPM, he's flip-flopped between them.
Not 100%, but what Entwistle used though I do know this:
Early days: He used tube and solid state (Marshall, Hi-Watt and Vox also Sunn). Fender P's, Danelectro, Rickenbacker,Mosrite,Gibson and Alembic.
1971-74 Rig:
1974-1985 Gelf and Sunn (Rack):
1989 Rig:

More 1989:
Although from '96-'97 it's noted that he used a Tech 21 SansAmp NYC model PSA-1, shortly.
After that he used Ashdown and in his chain used a Line 6 POD Pro guitar unit (for distortion), fed into RPM-1 preamp’s effect loop for chorusing and overdrive.