Chris Woollard Posted March 29, 2006 Share Posted March 29, 2006 Assuming an electromagnetic action organ is used in a large teaching room, heated during winter and smoking never permitted, what type of key contact is likely to be the most reliable over the years. Organ has a modern solid state switching system. Kimber Allen type silver or gold contact or the more modern Hall Effect type contactless switches. What are the advantages of each? Many thanks Chris Link to comment Share on other sites More sharing options...
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