Man, superficial water damage is relatively easy to deal with. Electronic cleaners and a toothbrush, or similar. That is important to do quickly with ARC gear in large part because they avoided solder masks for the longest time. That means the PCB traces themselves would be exposed to corroding elements.
Then there’s internal controls and switches, and transformers, which are not hermetically sealed, which is most of them.
It’s not unsalvageable, but this is a long road ahead. Assuming you can clean and dry them to get them working again, the long term effects of corrosion are really going to challenge keeping them going.
Then there’s internal controls and switches, and transformers, which are not hermetically sealed, which is most of them.
It’s not unsalvageable, but this is a long road ahead. Assuming you can clean and dry them to get them working again, the long term effects of corrosion are really going to challenge keeping them going.