Radio and Electronics Cookbook

70

The ‘Yearling’ 20 m receiver

Introduction

Published to celebrate the first anniversary of D-i-Y Radio, this excellent receiver design forms a suitable ‘second receiver project’ for those who have successfully completed the MW receivers earlier in this series. The receiver is powered from a PP3 battery or from a mains adaptor, and can be built with the help of an experienced constructor, on a prototype board. The circuit diagram and some of the components used are shown in the separate diagram. Headphones or a loudspeaker can be used and, once the radio is completed, a few simple adjustments will make the Yearling spring to life!

Building the receiver

Before starting the constructional process, start by identifying all the parts. One by ...