A function generator is usually a piece of electronic test equipment or software used to generate different types of electrical waveforms over a wide range of frequencies. Some of the most common waveforms produced by the function generator are the sine, square, triangular and sawtooth shapes.Function Generators are in stock at Tenco Electronics. Tenco offers inventory, pricing, & datasheets for Function Generators. A function generator is usually a piece of electronic test equipment or software used to generate different types of electrical waveforms over a wide range of frequencies. To know more, please view our large section of Function Generators below.