November 2000
Intermediate to advanced
336 pages
7h 43m
English
Content preview from Radio and Electronics Cookbook
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6
A simple metronome
Introduction
A metronome is a device used by musicians to indicate the tempo of a piece of music. Until electronics came on the scene, this ‘beating of time’ was achieved in much the same way as a clock keeps time, i.e. with a pendulum device, the clicking of the escapement indicating the beats of the music.
Those of you who have already built the Morse Key and Buzzer from the designs in this book, will recognise the circuit of this metronome – it is exactly the same as was used to produce the note of the buzzer. This circuit is shown in Figure 1.
Figure 1 The metronome circuit is rather like the Morse oscillator
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