• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

What can I use to clean really dirty circuit boards?

CRC is great for the job! CRC makes different formulas. I believe the one in the photo is a good choice. You can get it at Lowes or Home Depot.
Use deoxit for all contacts. You can get it at radioshack or order it off the internet.
 
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