110 Semiconductor Projects for the Home Constructor describes practical circuits, simple amplifiers, relay driving circuits, electronic switches operated by light or by sound, amplifiers with high input impedances, voltage regulators, and a constant-volume amplifier. Other circuits include wave-form generators, analogue-to-digital converters, logic circuits, frequency dividers, a d.c. chopper, and power controller circuits. The book describes the characteristics of the 2N29s6 npn manufactured by G.E.C. and the 2N3702 pnp where, in conjunction with a Schmitt trigger or a voltage operated electronic switch, these transistors can be used in voltage regulator circuits, light operated switches, or timer switches. The text also discusses the junction-gate field-effect transistors which can be used as amplifiers, or when used in conjunction with ordinary transistors, give superb performance in hybrid circuits. Field-effect transistors can also be used in timer circuits or in constant-volume amplifiers. The book explores the unijunction transistor that can be used in wide-range pulse generators, wide-range saw-tooth generator, analogue/digital converter, as well as a variable on/off-time lamp flasher. In high power switching projects, the silicon controlled-rectifier, also known as a thyristor, can be used. The book is suitable for radio technicians, engineers, apprentices, and students of electrical engineering or electronics.