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A transistor radio is a small portable radio receiver that uses transistor-based circuitry. Following their development in 1954, made possible by the invention of the transistor in 1947, they became the most popular electronic communication device in history, with billions manufactured during the 1960s and 1970s.
The telephone makes its debut in Sweden On the morning of February 14, 1876, a representative for Alexander Graham Bell handed in a patent application to the patent office in Washington for an apparatus for transmitting vocal sounds via electricity lines.ith the benefit of hindsight, it is evident that the telephone and telecommunications were indicative of the modern age throughout the 1900s. The... â 1 The telephone is the instrument of the devilâ News of the telephone spread quickly in Sweden.