View single post by sparks
 Posted: Jun 4th, 2014 02:42 PM
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Joined: Jan 15th, 2008
Location: New Zealand
Posts: 77
A 555 Timer is not suitable, as it is essentially a resistor / capacitor with level switching, hence producing an expontential waveform that I mentioned.
The 555 can be adapted to produce a sawtooth by adding extra components, but for the trouble this causes, it would be easier to buy the kit I mentioned, which will produce a nice triangle wave, and hence produce a nice sweep.