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JUNCTION FIELD EFFECT TRANSISTOR (JFET) is a unipolar voltage controlled device. Because Drain current is controlled by the voltage applied to gate-source terminal. Likewise in Transistors, JFET amplifiers can also be setup in the three configurations namely, Common Drain, Common Source and Common Gate. Transistor Configurations Common source configuration is almost similar to Common emitter configuration of BJT's (Common Emitter RC Coupled Amplifier). JFET can also be biased as Voltage Divider or Self Bias. Read More.....

O.S.S.D.A.S v1 stands for Open Source Solar Data Acquisition System. I have been working on this project since last few months. The picture below is the not the first prototype, but the first working prototype that looks like quite complete. There will be further revisions to the hardware and software for best efficiency and accurate results. Moreover, the recorded digital data should be rich enough to reflect the real world data’s mirror. [ ]

Simpleclock is an easy to assemble attractive 4-digit 7-segment LED display clock with temperature and alarm function. It is available in three display colors: Red, Blue and White. It comes as a kit of through-the-hole parts and can be soldered by any person with basic soldering experience. An attractive acrylic stand is included. [ ]