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| Diode tester |
| The diode tester in this circuit consist IC741 which Square-wave Generator the ouput... |
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| IC555 tester |
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| IC555 tester in this circuit have usefulness for engineers, hobbyists because IC555 it is IC popular. |
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| LED 7-Segment Logic Probe |
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| This circuit we do not use LED for indicator but in this circuit we would like to Indicates state by LED 7-Segment |
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| Starter tester |
| The starter test in this circuit it can easy for to made . It consist IC555 and two transistors |
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