This circuit uses the LM2931 which is not a common component today. What it does is to activate a lamp causing it to blink at a frequency determined by the capacitor.
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This project is of great use as it serves both to feed test equipment as well as to the component...
This conventional slow-moving circuit uses incandescent light bulbs, but can be changed to use...
This circuit generates sawtooth signals whose frequencies depend on the values of the selected...