I'm hoping someone can point me in the right direction as to which specific resistor array package to buy to replace these badly rusted ones on this A board. I've seen people call them resistor network SIP, or Resistor Arrays, and other technical stuff I'm not familiar with. I'd like to try to save this A board from becoming a parts board, and the rest of it has no corrosion just these sections here. Anyhoo, what are these called exactly and where can I get an exact replacement? Thanks in advance for any help!