In this interactive and animated object, learners examine the duty cycle of a squarewave produced by a multivibrator using a 555 IC (integrated circuit). A brief quiz completes the activity.

Learners read how to use the knobs and the output terminals of a Wavetek Model 25 function generator to obtain a waveform at a desired frequency.

Students read a description of the function generator and view a graphic that labels its parts.

Learners read a description of the knob controls, pushbuttons and output terminals on the Wavetek Model 25 signal generator.