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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Ken B[/i] [br]I want to use your 12 volt controller to replace a bad controller on a 4 wheel mobility cart that had a 100 amp Curtis controller. I know I'll have to use larger relays or put enough smaller ones in parallel to handle the load, already have them ordered. What I'd like to know is: Where would be the best place to install a pot to control speed and what value should it be? I expect I'll fry the existing 100K speed pot. Also, if I add the other relay between A & B, will that add 2 slower or faster speeds? [/quote]    Insert an Image File (GIF, JPG, JPEG, BMP, ZIP, PNG) Check here to include your profile signature.