wrenchguy Posted January 18, 2015 Share Posted January 18, 2015 Ransom Olds had ties to National Coil company starting in 1904. I wonder how old this contraption is? It weighs 46 lbs. and I believe its from a REO something, but could be aftermarket to other models. Note 3rd adjustable voltage brush lower left.Oil here 1/4 oz.! What does S W mean on the knobs? A thumbscrew makes the connection between one or the other.Lever advance / retard.thanks 4 looking. Link to comment Share on other sites More sharing options...
wrenchguy Posted February 22, 2015 Author Share Posted February 22, 2015 (edited) Bump about the "S & W" question which I found the answer to. S indicates the position of the thumb screw during summer operation, with the thumb screw in the W position indicates winter operation for a quicker battery recharge.January 1915 Motor World article.https://books.google.com/books?id=mOI_AQAAMAAJ&pg=PA53&lpg=PA53&dq=national+generator+magneto&source=bl&ots=OZL_1sILX2&sig=sAePvqFYgWUc9MXDn7bAUj6U7no&hl=en&sa=X&ei=dw_pVKrUD8uvyASp74KwCA&ved=0CF0Q6AEwCQ#v=onepage&q=national%20generator%20magneto&f=false&March 1914 Horseless Age article. https://books.google.com/books?id=02gfAQAAMAAJ&pg=PA413&lpg=PA413&dq=national+generator+ignition+unit&source=bl&ots=FZF5vuA9Qm&sig=FE9RzObw5ZDNYjBTB6Ec8Y9CEzw&hl=en&sa=X&ei=_RLpVMTKFcWigwTErYHwCQ&ved=0CCAQ6AEwAA#v=onepage&q=national%20generator%20ignition%20unit&f=false Edited February 22, 2015 by wrenchguy (see edit history) Link to comment Share on other sites More sharing options...
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