Velleman MK105 Signal Generator Kit, 1kHz Fixed Frequency Go to amazon.com Related posts Top 7 best signal generator kit: Which is the best one in 2022? FeatureSignal frequency: 1Khz (fixed)Output level: adjustable From0 to 100 mvrms (controlled by a potentiometer)Requires a 9V battery suggested p/n: 198731 DescriptionThis Kit outputs: sine WAVE, triangle, square WAVE and integrator (selectable through jumper). made in United States. Velleman brand products.