XPost: sci.electronics.basics, sci.electronics.repair   
   From: David@nospam.please   
      
   "DaveC"  wrote in message   
   news:0001HW.1C8B4B670002EE5111CD2E3CF@news.eternal-september.org...   
      
   Cleaning up an old rotary mode switch used for 5v logic levels. It has some   
   kind of grease in it.   
      
      
   …which has always confused me: grease is an insulator (well, the grease in   
   this switch is—just tested and it’s infinite ohms).   
      
   I read that dielectric grease is good to keep contacts sealed against the   
   elements that have high physical pressure (which overcomes any separation   
   provided by the grease) but that signal and other low voltages grease is   
   contra-indicated.   
      
      
   =========================================================================   
      
   Here in the UK, Electrolube manufactures a contact grease   
      
   http://www.ebay.co.uk/itm/like/111883046769   
      
   Electrolube has been selling this for 60+ years   
      
   Hope this helps   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)