20 Solid State Projects for the Car & Garage focuses on solid-state construction projects for use in the car and the garage, including ice-warning indicator, emergency-light flasher, electronic tachometer, and over-heat indicator. The book first elaborates on the capacitor-discharge ignition system, automatic parking light operator, and windshield wiper pause controller. The text then examines lights-are-on reminder, multi-input panel light flasher, ice-warning indicator, and over-heat indicator. Topics include how these solid-state construction projects function, basic and electronic versions of the units, and their construction and use. The publication takes a look at low-fuel-level indicator, emergency-light flasher, lighting-fault indicator, and two-level brake lights. The text also reviews the spotlight time delay unit, suppressed-zero voltmeter, anti-sleep alarm, electronic tachometer, and self-regulating battery charger. The manuscript is a valuable source of information for researchers interested in solid state projects for cars and garages.

110 Integrated Circuit Projects for the Home Constructor, Second Edition (Completely Revised) describes five types of linear integrated circuits and 110 projects in which these can be utilized. The book describes the typical characteristics of the 741 op-amp (with open-loop voltage gain, input impedance) and the variety of ways where it can be used in basic linear amplifier applications. The type 555 timer is designed for precision timing applications, monostable multivibrator, astable multivibrator, and Schmitt trigger applications. The XR-2206 i.c. can be used by the technician as a simple waveform generator or as a complex function generator with a variety of modulation facilities. The LM380 i.c. is an easy-to use general-purpose power audio amplifier. The technician can use it as simple non-inverting 2W amplifier, or in conjunction with a single bipolar transistor, as a small baby alarm. The 723 voltage regulator i.c. can be used in a variety of fixed or variable voltage power supply applications. It can be used as a low voltage (2-7.2V) regulator and, if the technician modifies the circuit, it can produce variable output voltages. The book is suitable for engineers, apprentices, technicians, and students of electrical engineering or electronics.

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 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.

Design details of fifty circuits incorporating photoelectric cells. For students and design engineers.