The Function Generator PM 5127 produces signals in the frequency range 0.01 Hz up to 1 MHz. The frequency can be set manually or controlled by an external signal. With the external control signal a nominal frequency sweep of two decades can be achieved. Three forms of output signal are selectable, viz: sinewave, triangular and squarewave. These signals can be produced either with a fixed duty cycle of 0.5 or with an adjustable duty cycle of 0.1 up to 0.9 ( = 10 up to 90 %). The open-circuit output voltage is continuously variable up to 30 Vp.p. Within this range, a d.c. voltage, adjustable between —10 V and +10 V, can be added to the output signal. The signal output has an impedance of 50 O and is short-circuit proof. A second output delivers a squarewave signal with fixed TTL-amplitude, adjustable frequency and duty cycle.