On Sat, 05 Mar 2016 20:27:52 -0800, Jeff Liebermann
wrote:

Perhaps some conductive grease would make a better connection?
http://www.sanchem.com/electrical-contact-lubricant.html

I forgot the data sheet:
http://www.sanchem.com/docs/NO-OX-ID%20A-Special%20WW.pdf?r=false
eBay link:
http://www.ebay.com/sch/i.html?_nkw=no-ox-id
and MSDS:
http://www.northtowncompany.com/pdfs/no-ox-id%20a%20special%20msds.pdf

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