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Offline macxlii  
#1 Posted : 26 May 2021 14:30:58(UTC)
macxlii

United States   
Joined: 28/05/2012(UTC)
Posts: 5
Location: Fairfax Station, Virginia
I have an M track layout and rolling stock, mostly unused, that has sat around for almost 60 years now; the brass contacts in the 7072 control boxes (red, green buttons) have become oxidized and no longer conduct. As an alternative to making up new controls from commercially available switches, can anyone recommend a a way to clean those contacts? My initial thought is to use vinegar followed by a neutralizing wash with a bicarbonate solution and perhaps a final wash with rubbing alcohol (when it is once more available from covid sanitizing demands). Is this likely to be effective?
Offline marklinist5999  
#2 Posted : 26 May 2021 15:25:36(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 953
Location: Michigan, Troy
You can try it, but I use CRC QD contact spray cleaner. It's plastic safe.
Offline Mman  
#3 Posted : 25 June 2021 14:54:53(UTC)
Mman

United Kingdom   
Joined: 23/05/2021(UTC)
Posts: 73
Location: England, Guildford
Fibreglass propelling cleaning pens are very good for clearing oxide and dirt from contacts, good for commutators as well.
ChrisG
thanks 2 users liked this useful post by Mman
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