The key contact springs

Tips and techniques for Minimoog Analog Synthesizers
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Palle
Posts: 25
Joined: Sun Mar 06, 2011 12:53 pm

The key contact springs

Post by Palle » Sun Dec 22, 2024 10:43 am

Hi!
Any ideas on howe to prevent the key contact springs from going to far up the hole of the rubber bus bar? I'm thinking a small drop of glue at the edge of the rubber, or perhaps a small piece of tape across it.

Also, the springs I got from Syntaur are all second hand. Do I need to clean them first? They're almost brown, and look more like copper than gold. I've used chemically clean isopropanol on installed springs before.

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MC
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Re: The key contact springs

Post by MC » Sun Dec 22, 2024 2:27 pm

Clean gold plating with a pipe cleaner (the kind used for tobacco pipes) dipped in denatured alcohol not isopropyl alcohol. IPA leaves a film behind that will cause trouble later.
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Palle
Posts: 25
Joined: Sun Mar 06, 2011 12:53 pm

Re: The key contact springs

Post by Palle » Wed Dec 25, 2024 7:01 am

Thaks so much for answering. I've used isopropanol before, but not enough long ago to experience any problems. The keys this time haven't had any springs changed.
Many alcohols are denaturated. What kind would be best?

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