Function Generator

INTERMEDIATE PROJECT A series of projects for the not-so-experienced constructor. Although each article will describe in detail the operation, use, construction and, where relevant, the underlying theory of the project, constructors will, none the less, require an elementary understanding and knowledge of electronic engineering. Each project in the series will be based on inexpensive and commonly available components. No one seriously involved in electronics design and construction, or the study of these subjects, can do without a function generator, which is essentially a signal source that supplies a number of waveforms of variable frequency and amplitude. This month"s instalment in the series on intermediate project deals with a triangular/rectangular wave generator, which is the first of three modules that together form a test instrument with an excellent price-performance ratio. One of the advantages of a modular design is that the user is in a position to decide on the confi...