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An enhanced eBook published in full colour. Now including extensive interactive content enabling exploration by inserting any values that would occur in a real situation whereby the graphics are redrawn to reflect those changes. Interactive Technology when used in the classroom can motivate passive students by encouraging their active participation where STEM subjects are ideally suited to Mobile Interactive Technology. Students are more likely to be comfortable with technology they understand i...

Mid-twentieth century table radios made primarily of brightly colored plastic represent a relative newcomer to the radio collecting arena. With designs that often resembled contemporary automobile grille and headlight configurations, these affordable radios were made by the major electronics companies as well as dozens of others with lesser known names. These examples of American industrial design and popular culture were once plentiful, and today they can be found at flea markets, garage and ho...

This book traces the history and evolution of the gramophone, the intricacies of recording sound on discs or cylinders and the complex early development of the record industry. It is a perfect guide for music enthusiasts.

In [BO]Old Time Radios![BX] Joseph J.Carr presents the history, theory, and practical operation behind old-time home, auto, amateur, shortwave, and CB radio sets, providing the detailed instructions and schematics needed to repair or rebuild them. Carr even includes a complete classic radio troubleshooting course, a capacitor/resistor colour code chart for identifying radio parts, and vacuum tube pin-out diagrams that are often absent from schematics.

Antique phonographs enjoyed a vigorous commercial existence 100 years ago. The market they inhabited was as filled with options, accessories, gadgets and gizmos as today's late-night television is populated with slicers, dicers, car waxes and beauty secrets. Collectors have acquired, examined and used these peripherals for years, but little has been written about them. In an effort to reveal more about the fascinating accessories, horns, storage cabinets, advertising and ephemera which surrounde...

Old television embraces more than eighty years of progress, from the crude experiments of John Logie Baird in 1925, through the pioneering 405-line days at Alexandra Palace just before the Second World War, to the era when television entered most homes in the 1950s, and the growing sophistication of the 1960s, with the introduction of 625-line colour transmissions. Andrew Emerson explores the British heritage of the black-and-white era of television, and the first years of colour up to the early...