Yes, psu caps & a few in signal-path was changed for better...bi-polar types.
-after some trial, BB OPA228 were used for MM-riaa. MC opamp were left alone (special pinout).
NJM2060 & OPA4227 used for line-level, stock for headphone out.
Arne K
HB2E-DC24
I restored a 3000 SII , using "cheap" HB2E-DC24-relays sourced from far-east. Bought 2 batches x 10.
Mind, they are used, even if seller claim "new"...
Arne K