Bakelite knob is a type of control knob that is made from a thermosetting plastic called Bakelite. Bakelite was one of the first synthetic plastics and was widely used in the early 20th century for various applications, including electrical insulators and control knobs. Bakelite knobs are known for their durability, heat resistance, and insulating properties, which make them ideal for use in electrical equipment. They typically have a smooth surface with a glossy or matte finish and come in various colors, including black, brown, and ivory. Bakelite knobs are commonly used in vintage radios, televisions, and other electronic devices, as well as in industrial machinery and appliances.