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Old Jan 7, 2013 | 10:39 AM
  #7  
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the_frozen_one
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From: Crawley, West Sussex
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Found this DIY guide:

http://www.gadgetjq.com/tach_install.htm

Looks like it essentially takes 2 copies of the same signal then joins them together to effectively double it. hope that helps

Last edited by the_frozen_one; Jan 7, 2013 at 10:40 AM. Reason: Grammar
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