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   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

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   Message 72,123 of 72,318   
   Tom Biasi to Bob Engelhardt   
   Re: DC relay coil   
   19 Oct 21 11:23:36   
   
   From: tombiasi@optonline.net   
      
   On 10/19/2021 11:08 AM, Bob Engelhardt wrote:   
   > I have a DC relay with the coil connections marked "+" & "-".  Does it   
   > matter?  The relay operates with either polarity so there is no internal   
   > flyback diode.  It's a 24v, 33ma coil for those who want to know.   
   >   
   > Thanks, Bob   
   If the designers marked it, probably would be good to follow that.   
      
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