Ramair428cjxr7

It came with 6 sprauge orange drops and a silicone diode terminal strip for selenium rectifier or something do those pieces go onto the board that can be upgraded for better performance or is that something else ? Is that recommend ? It also came with NOS big bottle 6cac and gz34 tubes so if I upgrade board do I still use them ? Thanks in advance and sorry for any cornfusion

Hello newbie here , just picked up a st-70 ,was stored with a full set of NOS tubes that came with it . It was tested and ran by son of original owner and builder before I got it ,I've bought a plug that brings my house voltage down to 117 or what it needs to be , removable bias plugs .I plan on running it through a marantz 2222b with a bang tt do u fine people see any problems with that ? All I got rite now is cerwin Vegas 12s