Stránka:roll 1930.djvu/61

10. 11. Coups and Degrees 55 (a) Make 4 javelins, each with an ownership mark of some kind. (b) Make a dummy bear, for game of Hunting the Big Bear. Either for coup; both for grand coup. (a) Paint an illuminated manuscript in the medieval fashion, dealing with some modern event, or episode in your life, to contain not less than 6 figures. (b) As above, in the manner of the Bayeux tapestry. Either for coup; both for grand coup. NN—Radio (a) Make a simple crystal radio set, and log at least 6 stations. (b) Make a regenerative tube set (one or more tubes), and log 12 stations. Either for coup; both for grand coup. (a) Make a multi-tube set, (4 or more), using radio frequency amplification. (b) Wind the coils for any of the above sets con- structed. Either for coup; both for grand coup. (a) Know and be able to explain at least 24 common symbols used in radio construction. Make a chart, and explain. (b) Draw a diagram, and use it in building a suc- cessful crystal set. Either for coup; both for grand coup. (a) Construct a workable speaker unit of magnetic type. (b) Construct a successful unit for cone type. Either for coup; both for grand coup. (a) Build a complete radio cabinet with built-in horn of expotential type. (b) Build a complete radio cabinet, and mount a dynamic speaker in same. Either for coup; both for grand coup. (a) Build a successful B battery eliminator. (b) Build a successful A battery charger. Either for coup; both for grand coup. (a) Build a spark coil transmitter for C.W. trans- mission. Know the Morse or international code for use with the same.