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Old Time Radios Restoration and Repair

Author: Joseph Carr
Publisher: McGraw Hill Professional
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Size: 25,48 MB
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A presentation of the history, theory and practical operation of old-time, home, auto, amateur, shortwave and CB radio sets which provides the detailed instructions and schematics required to repair or rebuild them. A troubleshooting section is included, with charts and pin-out diagrams.


Old Time Radios

Author: Joseph J. Carr
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Size: 13,79 MB
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Traces the history of radio receivers, explains how vacuum tubes, power-supply circuits, and AM detectors work, and offers advice on troubleshooting and repair techniques


Electronic Classics

Author: Andrew Emmerson
Publisher: Newnes
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Format Type: PDF, ePub
Size: 13,77 MB
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Vintage Radio, Television and Hi-Fi are highly popular 'modern antiques' - and offer the added challenge for restorers of the repair of classic valve-based circuits. This highly readable book encompasses all aspects of buying, collecting, restoring, repairing, sourcing parts, professional services, clubs and societies, etc. Covering the technical side as well as collecting, this book offers the most comprehensive coverage available. The first half of the book deals primarily with technical aspects of restoration, what components are needed and where they can be found. The second half of the book provides a wealth of useful information: names and addresses of clubs and societies, auctions and antique fairs; a professional services directory; how to get hold of service data. Armed with this book the enthusiast will be able to tackle the restoration of a vintage machine with confidence. A highly popular type of 'modern antique' Covers technical aspects of classic valve-based circuitry The most complete work for vintage audio and TV enthusiasts, dealers and repairers


The Science of Radio

Author: Paul J. Nahin
Publisher: Springer Science & Business Media
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Format Type: PDF, Mobi
Size: 20,52 MB
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From the reviews: "... The notes and problems at the end of each chapter are very helpful. [...] In the final analysis, the book is definitely worth owning. [...] It is an extremely well written – but unusual – book that I highly recommend for all physicists." The Physics Teacher


Encyclopedia of Modern Everyday Inventions

Author: David John Cole
Publisher: Greenwood Publishing Group
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Size: 28,51 MB
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Looks at the history of a variety of modern inventions, including the television, cameras, toasters, vacuum cleaners, and electric razors.


Practical Antenna Handbook 5 e

Author: Joseph Carr
Publisher: McGraw Hill Professional
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Size: 16,67 MB
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THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help of this unique guide. Updated and revised to provide clear answers to questions frequently asked by hobbyists and electronics technicians, Practical Antenna Handbook, Fifth Edition blends theoretical concepts with hands-on experience--requiring only high school mathematics Reorganized to flow logically from broad physical principles to specific antenna design and construction techniques, the book begins by covering the fundamentals. Then the half-wave dipole is discussed both as an excellent antenna in its own right and as a conceptual tool for predicting the performance of other designs. Transmission line impedance matching techniques--and a companion Smith chart tutorial--lead into "must have" accessories for tuning, monitoring, and troubleshooting antenna system performance. Other tools, such as antenna modeling software and network analyzer add-ons for PCs and Macs, are addressed, and concluding chapters offer fresh insights into support structures and installation techniques. NEW TOPICS COVERED INCLUDE: Characteristics of all-driven and parasitic arrays Beverages and small MF/HF receiving loops Top-loaded shunt-fed towers and other verticals Theory and design of Yagi beams Effect of real ground on propagation and antenna patterns, impedance, and efficiency Lightning protection and four kinds of ground systems Zoning and restrictive covenants COVERS A WIDE VARIETY OF ANTENNAS: Dipoles and inverted-Vs Quads, delta, and NVIS loops Wire arrays (bobtail curtain, half-square, rhombic) Verticals and shunt-fed towers Rotatable Yagi beams MF/HF receiving antennas (flag, pennant, K9AY, Beverage) Mobile and portable antennas VHF/UHF/microwave antennas And many more GO TO WWW.MHPROFESSIONAL.COM/CARR5 FOR: * Tables of worldwide geographic coordinates and antenna dimensions vs. frequency * Supplier updates * Author's blog * Additional photographs and schematics * Links to tutorials and specialized calculators


Adventures in Old Time Radio

Author: Brian Rogers
Publisher: Xlibris Corporation
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Format Type: PDF
Size: 10,38 MB
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Before there was television, before there were computers, before there was the Internet with its audio and video streaming, before there were cell phones, iPods, and iPads, there was radio. Beginning in the early 1920s, electrical wavesmysterious to manycould be sent from senders or transmitters into boxes called radios in peoples homes. Sometimes the boxes werent boxes at all. In radios earliest days, hobbyists built radios (called crystal sets) with wire and empty oatmeal boxes or similar materials. By 1930, radios were becoming massive pieces of wooden furniture proudly residing in living rooms. At first, the waves carried talks and music from transmitters in cities into radios nearby. But, in 1926, dependable chains or networks of radio stations were being put together with telephone wires, and people in many cities could listen to the same programs simultaneously. In the 1930s, local vocalists and other performers were being replaced on the air by network shows that informed, entertained, and enlightened. During the Great Depression, free entertainment coming over the radio helped ease evenings spent fretting over lack of employment and unpaid bills. Programs such as Fibber McGee and Molly and Jack Benny brought laughter into millions of homes. Suspense and similar shows inspired terror, and Dragnet and Your FBI in Peace and War brought mystery. As World War II neared, and all through the conflict, radio instantly brought into homes everywhere news of major and minor events. Because of radios immediacy, we learned, the same day, when Pearl Harbor was attacked, when Allied soldiers landed in France, and when surrender agreements were signed with Germany and Japan. In his book, Brian Rogers, in a collection of articles based on material he has researched and written for various radio hobby publications, introduces some of the events and personalities that made up the golden age of radio, roughly from 1930 to 1960, and the decade preceding when radio was taking its first electronic baby steps. He also shares his personal story with old-time radio and how, with warmly glowing vacuum tubes, his own hand-me-down radio brought friends to a boy who thought he had no friends.


Popular Science

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Size: 13,45 MB
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Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.


Practical Auto Truck Restoration HP1547

Author: John Gunnell
Publisher: Penguin
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Format Type: PDF, ePub
Size: 22,65 MB
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Today's restorer has a wealth of resources available that didn't exist just a few years ago. It is no longer necessary or feasible to perform every step of a ground-up restoration yourself (unless you truly want to). Knowing how to properly plan, organize and execute a restoration can save both time and money, and help ensure that you'll end up with exactly the car or truck you envisioned.


Jugornot Journal

Author: Jim Phelps
Publisher: Xlibris Corporation
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Size: 24,35 MB
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Jugornot was named for a phrase used by a moonshine still patron who was having difficulty getting his brew. He replied jug or not, Ill get my whiskey and thus the name of the community was born. The one-room school bearing the name Jugornot was built in 1926 to replace a pre-1900 log structure that was destroyed by fire. This book documents the day-to-day life and culture of this small Kentucky community. Jugornot School closed at the end of the 1966 school year, having served the community for 40 years. This documentary is about the everyday life of a community with its one-room school as its focus.