Aurora had a plunger style and design by which a stack of carbon/silicon discs changed the rheostat. Much less widespread styles provided a horizontal thumb-plunger and an entire-grip squeeze controller. In 1965, Russkit launched the trigger-operated pistol grip controller. The pistol grip swiftly grew to become the typical rheostat-controller fashion https://erwinr529beg9.dailyblogzz.com/profile