110 Waveform Generator Projects For The Home Constructor

110 Waveform Generator Projects for the Home Constructor

110 Waveform Generator Projects for the Home Constructor deals with waveform generator circuits that can produce forms of sine, square, triangle, sawtooth, ramp, pulse, or staircase. The generator circuits, built by the constructor using transistors, operational amplifiers or digital integrated circuits, can produce modulated or unmodulated outputs, with single or multiple form outputs. The constructor must follow two requirements in building a simple sine-wave oscillator: firstly, the output of an amplifying device must be fed back to its input via a frequency-selective network in such a way that the sum of the amplifier and feedback network phase-shifts equals zero (or 360) degrees at the desired oscillation frequency. Secondly, the gain of the amplifying device must exactly counter the loss or attenuation of the frequency-selective feedback network at the desired oscillation frequency, to give an overall system gain of precise unity. The book also describes different waveform modulations, such as amplitude modulation (a.m.), frequency modulation (f.m.), frequency-shift keying (f.s.k.), phase-shift keying (p.s.k.), sweep modulation, carrier keying, and how to apply these in practical circuits. Radio technicians, engineers, apprentices, hobbyists, and students of electrical engineering or electronics will find the book very useful.

110 waveform generator projects for the home constructor

110 Semiconductor Projects for the Home Constructor

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.