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78L05

Information on: 78L05

• Measure inductance & capacitance over a wide range
  Most simple circuits you'll find for measuring reactive components cover only a limited range of component values. Here's a circuit built from a handful of inexpensive parts that will let you measure values of both capacitors and inductors over seven orders of magnitude. Capacitors from about 1 pF to 10 uF and inductors from about 200 nH to 4 H can be characterized. To cover this wide range, however, you'll need to give up a little convenience, as you find the DUT’s value by ...
• Simple blown-fuse indicator sounds an alarm
  Safety fuses or fusible links see wide use in modern electronic equipment to protect the load and the power supply especially batteries against short circuits and excessive load current. Fuses are inexpensive and simple, and a wide range of parts is available. However, you must replace them when they blow, and, when they do, you need an indicating circuit that warns you about its failure, especially when the fuse body is ceramic or sand-filled for improved protection against arcing. The ...
• The experimenter's pot - Digital Potentiometer
  Joseph Yumul The experimenter's pot is a solid state potentiometer using Dallas semiconductor's DS1869 and National's LM78L05 two electrolytic capacitor two small push button switch and two optional Molex connector. This project is very useful especially in finding the right value of resistor in your experiments, you can attach this circuit to your next project that uses a pot or trimmer cause there are three types of DS1869 these are: DS1869-10 which is 10K DS1869-50 a 50K version DS1869-100 ...