In 1968, with a A$610 investment by him and his then fiancée Pip,: 203 Smith founded Dick Smith Car Radios, a small taxi radio repair business in the Sydney suburb of Neutral Bay, New South Wales, then later expanded into the car radio business at Gore Hill, dubbing himself the "Car-Radio 'Nut'". This business later became electronics retailer Dick Smith Electronics which grew rapidly in the late-1970s, particularly through sales of Citizens Band radios and then personal computers, with annual sales of about A$17 million by 1978.