|The signal generator is
a source of signals for testing and measuring purposes.
Most commonly they generate sine waves.
Audio signal generators produce
signals in a range from a few Hertz up to several Kilohertz.
Radio frequency generators
can provide frequencies from about 100 Kilohertz up to several hundred
The picture is of a simple
generator with on/off and frequency and amplitude controls. The large control
knob in the centre selects the base frequency while the four switches below
select a multiplier.
Generators producing square waves, sawtooths and triangular waves etc are called function generators.
Generators can be used in the location of faults in non-working equipment. See the page on fault finding.
Copyright Graham Knott 1999