Radio and Electronics Cookbook

Radio and Electronics Cookbook

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The RSGB Radio and Electronics Cookbook is a unique collection of electronics projects, ideal for all electronics enthusiasts and experimenters. The simple step-by-step instructions also make this book ideal for amateurs seeking to build up their electronics skills and knowledge. The projects draw on the massive enthusiasm and design know-how of the RSGB, the UK's leading federation of radio amateurs. Only a basic acquaintance with electronics construction is assumed, with clear step-by-step instructions and numerous illustrations supplied throughout. The projects are also supported with features on the electronics involved. The circuits themselves provide a wealth of quick, rewarding construction projects ranging from radio receivers and amplifiers to test equipment, a moisture meter, a desk microphone, a water level alarm, and Christmas tree LEDs. A wealth of DIY and hobby projects Written by experts who really understand home electronics construction Includes factsheets to help you learn electronics basics as you work through the book35 A charger for NiCad batteries Introduction The cost of replacing dry batteries can be alleviated to a great extent by the use of rechargeable batteries ... Here is the circuit of a charger to keep them in prime condition. ... For example, if the battery is rated at 2 Ah, it will deliver a current of 0.5 amp for 4 hours, or 0.25 amp for 8 hours. ... one-tenth of the numerical value of the capacity; so, for our 2 Ah battery, a charging current of around 200 mA (2 -r 10 = 0.2 A or 200mA) would be used.

Title:Radio and Electronics Cookbook
Author:George Brown, Radio Society of Great Britain
Publisher:Newnes - 2001


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