Biology, Electronics, Aesthetics and Mechanics

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David Wilson

I just finished building a bicore head from your tutorial last weekend. worked great first try with no problems whatsoever!  I used a 74AC240 with a modified servo and powered by 2 AAA batteries that have lasted for quite some time now!   I've been using it all week and they haven't gone dead yet! Great tutorial!  Dave   17 Mar 2001 
 It works great and now, 2 months later, the batteries are just starting to show signs of becoming dead. I'd say they have lasted for at least 30 hrs. of spinning. Great tutorial!   27 May 2001 

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