I started the Electronics Club at E.A.B.J.M. some time back in the early 1980’s. It was an after school voluntary activity intended to introduce students to the world of electronics through the construction of projects like a sound operated switch, a simple radio receiver etc. In the beginning it was the students themselves who suggested what they would like to make and we sat down together and worked something out. After a year or two of this I decided that it was worth collecting together all the circuits in a book. It is this book which is presented here.
