From: cd@fucktheeussr.com   
      
   On Mon, 13 Aug 2018 13:40:56 -0400, Bob Engelhardt wrote:   
      
   > I have a Milwaukee 12v variable speed tool with a bad control board.   
   > Rather than replace the board, I'm planning to just use a switch for   
   > single (full) speed.  But the switches that I have & will fit are AC   
   > only.  So, I'm thinking that I'll use the switch to control a MOSFET   
   > that will do the heavy lifting.  I just want to make sure that I'm not   
   > missing anything.   
   >   
   > The plan:   
   >    + ______________   
   >         |          | |         Load |          | |__/.____|   
   >              |   | 1k    |   
   >              |     |   
   >    - ________|_____|   
   >   
   > The MOSFET is IRF3205 (Rdson of 8 mohm)   
   >   
   > I don't think that I need a switch-gate resistor, or do I?   
   >   
   > Thanks, Bob   
      
   If it's an inductive load you'll want a back EMF protection diode across   
   it as well; save blowing your MOSFET.   
      
      
      
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