From: Skenny@highstream.invalid   
      
   Bill wrote:   
   > Anyone know of a way to reverse polarity (9 to 12V DC)  each time the power   
   > is removed? In this gadget I have there is a small 12V supply. When I turn   
   > the gadget off and then turn it back on, I wish to have the 12V reverse   
   > polarities. For another example, I have a black box with 2 posts, the top   
   > post is +12v and the bottom post is 0v. I turn the power off and the next   
   > time I turn the power on, I would like the top post to be 0v & the bottom   
   > post to be +12v. Is there like a simple flip flop chip or ?? than can   
   > accomplish this task? All comments most appreciated. Thanks in advance.   
   >   
   > Bill   
   >   
   >   
   What is the max current draw on this?   
      
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