Hi there bass players! First of all, I'm all new to this community, so let me kindly know if this thread does not correspond to this section and has to be moved to another. Alright then. Here's my issue: I'm the owner of an SX Custon Made Vintage Series Jazz Bass. I've been playing it for at least three years (never in a very active way; played just for myself, and sometimes live for fun with friends). I've never been into hardware stuff at all, and I think the moment has came: one of the pots stopped working; the saddle (or "bridge"? Are them synonyms?) got heavily corroded; and the magnets of the pickups got pretty dirty in the same way, too. Of course, I started to realize that the sound of the instrument itself started to get worse with the time, so I decided to fix this issue some way. On the other hand, I've got an LTD B105 that got its active preamp circuit broken. The problem is that, when I google for "saddles", "pots" or "preamp circuits" to buy, there appears lots of brands, models, prices and opinions for million of different items. Remember I said I ain't got any clue about hardware stuff... Which one should I choose? So, the question is: which are your recommendations? Or at least, where to start? How to know which is the right one? Thank you!