Heathkit was world renowned as a manufacturer of electronics in kit form. This book covers Heathkit's test equipment, starting with a brief history of Heathkit, an overview of the test equipment product lines and tips on buying and restoring vintage test equipment from sources like eBay. Separate chapters cover the major categories of component testers and substitution boxes, frequency counters, meters, oscilloscopes, power supplies, signal generators, tube testers and checkers and miscellaneous test equipment. Each chapter includes one or more "In-Depth" sections that look at a representative model from the author's Heathkit collection covering its features, operation, and notable quirks or trivia. The appendix provides a list of references and resources including books, web sites, and suppliers of parts, manuals and related products and services as well as a detailed product listing of every known model of test equipment produced by Heathkit.

A guide to the theory and recent development in the medical use of antenna technology Antenna and Sensor Technologies in Modern Medical Applications offers a comprehensive review of the theoretical background, design, and the latest developments in the application of antenna technology. Written by two experts in the field, the book presents the most recent research in the burgeoning field of wireless medical telemetry and sensing that covers both wearable and implantable antenna and sensor technologies. The authors review the integrated devices that include various types of sensors wired within a wearable garment that can be paired with external devices. The text covers important developments in sensor-integrated clothing that are synonymous with athletic apparel with built-in electronics. Information on implantable devices is also covered. The book explores technologies that utilize both inductive coupling and far field propagation. These include minimally invasive microwave ablation antennas, wireless targeted drug delivery, and much more. This important book: Covers recent developments in wireless medical telemetry Reviews the theory and design of in vitro/in vivo testing Explores emerging technologies in 2D and 3D printing of antenna/sensor fabrication Includes a chapter with an annotated list of the most comprehensive and important references in the field Written for students of engineering and antenna and sensor engineers, Antenna and Sensor Technologies in Modern Medical Applications is an essential guide to understanding human body interaction with antennas and sensors.

HAm Radio collecting and history.

Classic Keys is a beautifully photographed and illustrated book focusing on the signature rock keyboard sounds of the 1950s to the early 1980s. It celebrates the Hammond B-3 organ, Rhodes and Wurlitzer electric pianos, the Vox Continental and Farfisa combo organs, the Hohner Clavinet, the Mellotron, the Minimoog and other famous and collectable instruments. From the earliest days of rock music, the role of keyboards has grown dramatically. Advancements in electronics created a crescendo of musical invention. In the thirty short years between 1950 and 1980, the rock keyboard went from being whatever down-on-its-luck piano awaited a band in a bar or concert hall to a portable digital orchestra. It made keyboards a centerpiece of the sound of many top rock bands, and a handful of them became icons of both sound and design. Their sounds live on: Digitally, in the memory chips of modern keyboards, and in their original form thanks to a growing group of musicians and collectors of many ages and nationalities. Classic Keys explores the sound, lore, and technology of these iconic instruments, including their place in the historical development of keyboard instruments, music, and the international keyboard instrument industry. Twelve significant instruments are presented as the chapter foundations, together with information about and comparisons with more than thirty-six others. Included are short profiles of modern musicians, composers, and others who collect, use, and prize these instruments years after they went out of production. Both authors are avid musicians, collect and restore vintage keyboards, and are well-known and respected in the international community of web forums devoted to these instruments.

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