GW Instek SFG-2120 DDS Function Generator with 9 Digit LED Display, Counter, Sweep and AM/FM Modulation, 0.1Hz to 20MHz Frequency: Amazon.com: Industrial & Scientific
FG-1000 Digital Function Generator - Metravi Instruments
2MHz Function Generator with 4 Digital LED Display, CMOS OUT - GW Instek, Function Generators