# Search results

2. ### What is the negative resistance ?

negative resistance What is negative resistance ?
3. ### [SOLVED] Help me build a FM receiver with TDA7000 IC

tda7000..? h**p://www.users.bigpond.com/cool386/tda7000/tda7000.html
4. ### Where can I find exercises on telecommunications?

Telecommunication h**p://www.ee.bilkent.edu.tr/~ee411/
5. ### What are differences between frequency and phase modulation?

What are differences of frequency vs. phase modulation ?
6. ### A basic circuit calculation problem

h**p://en.wikipedia.org/wiki/RLC_circuit
7. ### What is a Fourier analysis

h**p://www.mathworks.com/moler/fourier.pdf
8. ### Looking for ebook about fourier transform

fourier transform h**p://chinese.csie.ncku.edu.tw/chwu/Courses/DTSP/Ch9_Computation_of_the_DFT.pdf
9. ### Can you get the trigonometric series from complex Fourier ?

Fourier series h**p://satyap.csoft.net/ss.pdf
10. ### Need equations for 3d coordinate system

3d coordinate system? r=square root (x^2+y^2+z^2) cos (theta) = z/square root (x^2+y^2+z^2) tan(phi) = y/x