I must construct a function generator with these specification : frequency areas are 10Hz-100Hz,100Hz-1KHz,1KHz-10KHz,10KHz-100KHz and in the output i want semitonic wave 0-12Vpp,square wave 0-12Vpp and triangular wave 0-12Vpp
Please help me with the circuits.I want to be as simple as possible in order to manage to construct them.I've find some circuits till now from the net but i don't know if they are suitable for my project.I base on your help and experience.