August 19, 2009

Wireless auto tachometer

INTRODUCTIONAnyone performing their own automobile tune-ups knows how important it is to know your engines speed. With this tachometer, you can measure your engines speed without any connections or annoying timing lights.circuit diagram Notes Calibrate the unit as folows:Set up this circuit: Turn on the Tach and allow a few minutes for temperature stabilization.Set S2 to 4 cylinders and adjust R5 for a meter indication of 180 (1800 rpm).Set...

Semi Log Graph Sheet

Semi Log GraphThey are mainly used for plotting very LARGE and very SMALL value in a same graphNotice that the numbers along the x axis are evenly spaced, while along the y-axis, we have powers of 10 evenly spaced.Taking the section between 1 and 10Finding Slope on Semi Log Gr...

August 16, 2009

Conversion of Binary to Decimal

binary to decimal...introduction:- The binary (base two) numeral system has two possible values, often represented as 0 or 1, for each place-value. In contrast, the decimal (base ten) numeral system has ten possible values (0,1,2,3,4,5,6,7,8, or 9) for each place-value. To avoid confusion while using different numeral systems, the base of each individual number may be specified by writing it as a subscript...

DOOR BELL FOR DEAF CLICK HERE

Electronics is the study and use of electrical that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves. and semiconductors. The pure study of such devices is considered as a branch of physics, while the design and construction electronic circuits to solve practical problems is called electronic engineering.

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