The 2001A's exceptional combination of feature and capabilities make it perfect for applications such as audio testing, scope sweep drive, measuring filter response curves, amplifier rolloffs and transmission characteristics. Additional uses are found in trouble-shooting communications, telephone systems, speech processing, D/A and A/D systems, designing analog/ digital/ control circuitry, and servicing recorders, video games, and video cassette recorders. It is also particularly suitable for applications in electrical labs used in educational institutions.