Radio invented by

In the dark days of the Great Depression and during World War II, Americans gathered around their radios to listen to the latest news and entertainment programs. Radio was America's first mass medium, bringing together members from different classes and backgrounds into one nation. During the 1930s, radio linked the country, and ended the isolation of rural residents.Radio was so important, that a question on the 1930 Census was, "Is there a radio set in your household?" Radio during the 1930s included comedians Jack Benny, Fred Allen, George Burns, Gracie Allen, Fibber McGee, and Molly. During the evening, people listened to "The Green Hornet," "Jack Armstrong, the All-American Boy," and "The Shadow", with its iconic introduction: "Who knows what evil lurks in the hearts of men? The Shadow knows!" "The Shadow" Source: Families were glued to their radio sets, listening to the exploits of baseball greats Lou Gehrig and Joe DiMaggio. On May 6, 1937, radio journalist Herbert Morrison of Chicago station, WLS was broadcasting live "There’s smoke, and there's flames, now, and the frame is crashing to the ground, not quite to the mooring mast. Oh, the humanity ..." In 1938, at a time when the population of the U.S. was 130 million, nearly 40 million people, or almost one-third of the entire population, listened to "The Race of the Century" between horses Seabiscuit and War Admiral. If you're wondering, Seabiscuit won. During WWII, information about what was happening in Europe wa...

I have never seen any reference to Chevy and early radios. A portable set in 1922 would have cost twenty times the cost of the car. I am aware of a Springfield Rolls Ghost with a set in 1922 and the cost of the unit was said to be two grand plus. And it was enormous. Duesenberg had them installed in late 1928 for the Model J’s. Very few were sold. It was a Philco unit. I have never seen any reference to Chevy and early radios. A portable set in 1922 would have cost twenty times the cost of the car. I am aware of a Springfield Rolls Ghost with a set in 1922 and the cost of the unit was said to be two grand plus. And it was enormous. Duesenberg had them installed in late 1928 for the Model J’s. Very few were sold. It was a Philco unit. After searching google it states chevrolet installed a westinghouse radio in 1922 which as you point out was very bulky and very expensive And as I expected, it wasn’t Chevrolet that did it. Westinghouse was experimenting and chose to use a small cheap car. I think the implication is people wanna know who actually install the car radio for a customer in that case the earliest vehicle I am aware of is the 1922 Rolls-Royce silver ghost, and the earliest known factory installed radio as an option that I am aware of was December 1928 on a model J Duesenberg . Cadillac actually was the first company that had dealer promotional item paperwork for installing in 1930. The sets were not very good and we’re discontinued partway into the year. Edited Apr...

A tuned radio frequency receiver (or TRF receiver) is a type of Background [ ] The TRF receiver was patented in 1916 by Antique TRF receivers can often be identified by their cabinets. They typically have a long, low appearance, with a flip-up lid for access to the A problem with the TRF receiver built with neutralization that uses additional circuitry to partially cancel the effect of the interelectrode capacitance. How it works [ ] The classic TRF receivers of the 1920s and 30s usually consisted of three sections: • one or more tuned RF amplifier stages. These amplify the signal of the desired station to a level sufficient to drive the detector, while rejecting all other signals picked up by the antenna. • a • optionally, but almost always included, one or more (from top): the triode tube, the interstage coupling coil, and the capacitor attached to its front panel tuning dial. The compartments contain (from left): the 4 RF stages, the detector stage, and the 4 tube audio amplifier. The capacitors could be linked to a common shaft and tuned together, or tuned separately. Each tuned RF stage consists of an amplifying device, a variometer) was used, with a knob on the front panel to tune the receiver. The RF stages usually had identical circuits to simplify design. Each RF stage had to be tuned to the same frequency, so the capacitors had to be tuned in tandem when bringing in a new station. In some later sets the capacitors were "ganged", mounted on the same shaft or other...

Development of radio technology Maxwell’s prediction Early in the 19th century, Hertz: radio-wave experiments At the time of Maxwell’s prediction there were no known means of Marconi’s development of wireless The Italian physicist s in Morse code travelled from Poldhu, Cornwall, to The Fleming diode and De Forest Audion The next major event was the discovery that an electrode operating at a positive voltage inside the evacuated envelope of a heated Fleming failed to appreciate the possibilities he had opened up and it was the American inventor Early research by commercial companies The first commercial company to be incorporated for the manufacture of radio apparatus was the Wireless Telegraph and Signal Company, Ltd. (England) in July 1897 (later changed to Marconi’s Wireless Telegraph Company, Ltd.); other countries soon showed an interest in the commercial exploitation of radio. Among the major developments of the first two decades of the 20th century was De Forest’s discovery in 1912 of the Though early experiments had shown that speech could be transmitted by radio, the first significant demonstration was not made until 1915 when the From 1920 onward radio made phenomenal progress through research activities in Europe, Hand wiring In the early days of radio and up to the end of With printed wiring, the layout of the circuit is planned with component size and position in mind, and connections are made by suitably shaped copper strip or foil bonded to an insulating boar...

In the dark days of the Great Depression and during World War II, Americans gathered around their radios to listen to the latest news and entertainment programs. Radio was America's first mass medium, bringing together members from different classes and backgrounds into one nation. During the 1930s, radio linked the country, and ended the isolation of rural residents.Radio was so important, that a question on the 1930 Census was, "Is there a radio set in your household?" Radio during the 1930s included comedians Jack Benny, Fred Allen, George Burns, Gracie Allen, Fibber McGee, and Molly. During the evening, people listened to "The Green Hornet," "Jack Armstrong, the All-American Boy," and "The Shadow", with its iconic introduction: "Who knows what evil lurks in the hearts of men? The Shadow knows!" "The Shadow" Source: Families were glued to their radio sets, listening to the exploits of baseball greats Lou Gehrig and Joe DiMaggio. On May 6, 1937, radio journalist Herbert Morrison of Chicago station, WLS was broadcasting live "There’s smoke, and there's flames, now, and the frame is crashing to the ground, not quite to the mooring mast. Oh, the humanity ..." In 1938, at a time when the population of the U.S. was 130 million, nearly 40 million people, or almost one-third of the entire population, listened to "The Race of the Century" between horses Seabiscuit and War Admiral. If you're wondering, Seabiscuit won. During WWII, information about what was happening in Europe wa...

Development of radio technology Maxwell’s prediction Early in the 19th century, Hertz: radio-wave experiments At the time of Maxwell’s prediction there were no known means of Marconi’s development of wireless The Italian physicist s in Morse code travelled from Poldhu, Cornwall, to The Fleming diode and De Forest Audion The next major event was the discovery that an electrode operating at a positive voltage inside the evacuated envelope of a heated Fleming failed to appreciate the possibilities he had opened up and it was the American inventor Early research by commercial companies The first commercial company to be incorporated for the manufacture of radio apparatus was the Wireless Telegraph and Signal Company, Ltd. (England) in July 1897 (later changed to Marconi’s Wireless Telegraph Company, Ltd.); other countries soon showed an interest in the commercial exploitation of radio. Among the major developments of the first two decades of the 20th century was De Forest’s discovery in 1912 of the Though early experiments had shown that speech could be transmitted by radio, the first significant demonstration was not made until 1915 when the From 1920 onward radio made phenomenal progress through research activities in Europe, Hand wiring In the early days of radio and up to the end of With printed wiring, the layout of the circuit is planned with component size and position in mind, and connections are made by suitably shaped copper strip or foil bonded to an insulating boar...

A tuned radio frequency receiver (or TRF receiver) is a type of Background [ ] The TRF receiver was patented in 1916 by Antique TRF receivers can often be identified by their cabinets. They typically have a long, low appearance, with a flip-up lid for access to the A problem with the TRF receiver built with neutralization that uses additional circuitry to partially cancel the effect of the interelectrode capacitance. How it works [ ] The classic TRF receivers of the 1920s and 30s usually consisted of three sections: • one or more tuned RF amplifier stages. These amplify the signal of the desired station to a level sufficient to drive the detector, while rejecting all other signals picked up by the antenna. • a • optionally, but almost always included, one or more (from top): the triode tube, the interstage coupling coil, and the capacitor attached to its front panel tuning dial. The compartments contain (from left): the 4 RF stages, the detector stage, and the 4 tube audio amplifier. The capacitors could be linked to a common shaft and tuned together, or tuned separately. Each tuned RF stage consists of an amplifying device, a variometer) was used, with a knob on the front panel to tune the receiver. The RF stages usually had identical circuits to simplify design. Each RF stage had to be tuned to the same frequency, so the capacitors had to be tuned in tandem when bringing in a new station. In some later sets the capacitors were "ganged", mounted on the same shaft or other...

I have never seen any reference to Chevy and early radios. A portable set in 1922 would have cost twenty times the cost of the car. I am aware of a Springfield Rolls Ghost with a set in 1922 and the cost of the unit was said to be two grand plus. And it was enormous. Duesenberg had them installed in late 1928 for the Model J’s. Very few were sold. It was a Philco unit. I have never seen any reference to Chevy and early radios. A portable set in 1922 would have cost twenty times the cost of the car. I am aware of a Springfield Rolls Ghost with a set in 1922 and the cost of the unit was said to be two grand plus. And it was enormous. Duesenberg had them installed in late 1928 for the Model J’s. Very few were sold. It was a Philco unit. After searching google it states chevrolet installed a westinghouse radio in 1922 which as you point out was very bulky and very expensive And as I expected, it wasn’t Chevrolet that did it. Westinghouse was experimenting and chose to use a small cheap car. I think the implication is people wanna know who actually install the car radio for a customer in that case the earliest vehicle I am aware of is the 1922 Rolls-Royce silver ghost, and the earliest known factory installed radio as an option that I am aware of was December 1928 on a model J Duesenberg . Cadillac actually was the first company that had dealer promotional item paperwork for installing in 1930. The sets were not very good and we’re discontinued partway into the year. Edited Apr...