I have a Hamilton Beach Scovill Deluxe mixer model 40-3. The best I can tell is that the resistor is faulty, assuming I've identified the part correctly. When removed from the mixer's the speed control will work fine, when installed the mixer runs at full speed all the time. My Ohm meter detects near zero resistance through the component in question. I can not identify it as a resistor (it is much larger than any I recall seeing). It rests between the motor and power cord, where the speed controller meets the motor. Yet the speed controller bypasses the resistor. So that one end of the power cord goes to the motor. While the other goes to the speed controller (which appears to use points like in an old car and unlike any rheostat I have ever seen)then on to the motor. I attached an image of the part as I can not decipher the text, as it is too degraded. Hopefully someone can figure out what part I need to repair this mixer. The gunk is 40+ year old electrical tape residue. Which is now a hardened shell that I carefully scrapped off with an exacto knife to minimize damage to the underlying hidden text. The mixer is from 1968, so yes I know there are better mixers nowadays if I wanted one I would buy a KitchenAID Professional 5 Plus 450 watt mixer. I want to repair it because it would be interesting to repair something that old and use it for the occasional cake or whipped cream, when opened up the motor looks brand new. As does the chrome finish on the outside. It is a rather meek unit using only 150 watts.