Aurora had a plunger style and design in which a stack of carbon/silicon discs replaced the rheostat. Considerably less common types involved a horizontal thumb-plunger and an entire-grip squeeze controller. In 1965, Russkit released the trigger-operated pistol grip controller. The pistol grip swiftly grew to become the conventional rheostat-controller design https://wardq406stt4.wonderkingwiki.com/user