I have tried everything with this circuit and nothing works. i know that the transistor isnt burnt out because i just tested it and it gives me a reading.
I will try to explain everything by words. I have one of the pins from the p2 plug connected to the collector of the tip31. i have the other big pin of the p2 connected to the negative terminal of the battery.The base of the transistor is connected to the cathode of the led. The emitter pin of the transistor is connected to the anode of the led. The source of power is a nine volt battery. I have 3 blue leds in parallel that need 3v each. I put 2 47 ohm resistors before the anode of the led. I also put a 845 ohm resistor before each pin of the transistor. When i plug the battery in the leds turn on but they do not flash. Whenever i disconnect the transistor from the circuit the leds turn off so this must mean that the transistor has not been burned out. I am using a small mp3 player to listen to the music but nothing is happening. Can someone draw me a better diagram or explain to me exactly what parts i need to put where. I will give ten points to the person that helps me solve my problem.

http://www.instructables.com/id/ELN1WL8RJ9ERIE36V1/

“Technology Bytes”

➢ A farmer in the mid-1800s worked from sunup to sundown and produced only enough food to feed about four people. One farmer today produces food for 101 people.

➢ Thanks to advances in public health technology, human life expectancy has increased from 47 years in 1900 to 75 years today.

➢ Integrated circuits contain thousands of electronic parts collected on a thin chip of silicon so small it could pass through the eye of a needle.

➢ United States companies, which exchange data electronically, rose from almost none in 1987 to 45,000 in 1993.

➢ In 1991, American companies for the first time spent more on computers and communications equipment than they did on industrial, mining, farming, and construction materials.

➢ While computers and other electronic gadgets are getting smaller, the amount of information that can be accessed through them keeps growing.

➢ Fiber optics is preferred over traditional copper wiring because light (which carries information) travels farther and faster without losing its clarity. The fibers, which are no thicker than a human hair, carry more information than telephone wires.

➢ The Internet was started in 1969, during the Cold War, so the Defense Department’s Advanced Research Projects Agency could share computer resources. This electronic roadway consists of more than 10,000 networks, linking universities, libraries, science foundations, government, and businesses. It is estimated that 15 million to 30 million people now use the Internet.

I’ve never really flown an R/C plane before but i was looking into getting one. I was wondering what would be better for a Beginner. i was looking at the parkzone spitfire MkIIB RTF or the hobbyzone super cub RTF. Im also open to any other suggestions that are a relatively cheap and RTF. (im not to good with building electronic circuits and wiring motors).

electronic signal.

digital signal.

analog signal.

integrated signal.

Physics (36 credits)
General Physics: Mechanics
General Physics: Electricity and Magnetism
General Physics: Fluids and Thermal
General Physics: Wave Motion and Quantum
Introduction to Modern Physics
Theoretical Mechanics
Introduction to Quantum Mechanics I
Intermediate Electricity and Magnetism I
Topics in Contemporary Physics
Solid State Physics I
Thermal Physics
Experimental Physics

Electrical Engineering (21 credits)
Introduction to Digital Systems (Computer Engineering)
Circuits and Devices
Continuous-Time Linear Systems
Electronic Circuit Design
Communications Systems I
Principles and Applications of Lasers

Mathematics (30 credits)
Calculus with Analytical Geometry I
Calculus with Analytical Geometry II
Ordinary and Partial Differential Equations
Matrices
Calculus and Vector Analysis
Advanced Calculus for Engineering and Science I
Advanced Calculus for Engineering and Science II
Mathematics of Algorithms*
Concepts of Discrete Mathematics
Mathematical Coding Theory
Chemistry (8 credits)
Chemical Principles I
Experimental Chemistry I
Chemical Principles II
Experimental Chemistry II

Computers (12 credits)
Introduction to Programming Techniques*
Programming for Engineers with C++
Introduction to Computer Architecture*
Computer Organization and Design*

and then I have my General Education courses. Do you think these courses will lead to a variety of job opportunities?

Whicjh is the best software for electronics circuit simulation ?

2. Which one of the following statements is correct? A. An electron is much larger than an atom.
B. An electron has a neutral electrical charge.
C. An electron is located inside the nucleus of an atom.
D. An electron has a negative electrical charge. 5. In electrical work, resistance is often represented by the A. Greek symbol Ω. C. letter V.
B. letter I. D. letter E. 14. What color band markings would be used on a 2.2 kΩ resistor?A. Black, black, orange C. Red, red, orange
B. Red, red, red D. Orange, red, red 16. Which one of the following statements is correct? A. A series circuit must contain at least two load devices.
B. A series circuit must contain resistors.
C. A parallel circuit contains two or more electrical paths for current to follow.
D. A parallel circuit contains only one electric
the other question for 16 that got cut off D. A parallel circuit contains only one electrical component. thanks for any help you can give.

As the title explains I would like to learn basically what a sophomore/junior level EE student would learn. I’m looking for the practical side of circuitry, and less towards the theory. Obviously you need theory to understand practical and vice vursa, but I would like to actually be able to make basic circuits not just understand how they work. I’m a sophomore chemical engineering student and I’ve taken Physics Electricity and magnetics so I understand ac, dc, R,C, L Circuits. Also, is there any book or site that has different chips and what they do etc?

The last thing is I want the book to be cheap…

These are 2 I’ve found through amazon that people seemed to like. Anyone used these?
Teach Yourself Electricity and Electronics, Fourth Edition (Teach Yourself) – Stan Gibilisco; Paperback
A Practical Introduction to Electronic Circuits – Martin Hartley Jones; Paperback

Let me clarify: Do all electronic circuits have electric equivalents?

I am very interested in all electronic stuff………all the capacitors, resistors, and all other stuff on the circuit board.

I, however, wasn't offered any such classes in high school, so i took computer repair instead. I have been looking for a website where i can learn more about what all the things on a circuit board do, what they are, how they work, ….etc.

can anyone reccomend any links or anything? cheers!