On Sat, 17 Feb 2018 10:05:32 -0800 (PST), KenO
wrote:

Inherited an electronics unit that has severe contact corrosion due to bad alkaline batteries.
Appreciate any suggestions how to restore these contacts to working condition.
Thanks
Ken

Replace them with shiny new contacts:
https://www.ebay.com/sch/i.html?_nkw=battery+spring+contact

If you plan to keep your "electronics unit", consider replacing the
alkaline cells with rechargeable NiMH LSD (low self discharge) cells
such as Eneloop. These types of cells can also leak, but in my
experience much less often.
https://www.knivesandtools.com/en/ct/low-self-discharge-nimh-batteries.htm

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558