... YB1602 YB1605 YB1610 YB1615 YB1620 · Digital Frequency counter · Linear/Log Sweep Frequency Function · External FM VCF Input · TTL/CMOS Output · ... Wave: Sin,Triangle,Puls,Ramp·Signal Type: single,FM,AM,Sweep·Sweep Type: Linear,Log·Sweep Rate: 5s~ ... Generator8 digit LED display (including 3 digits for voltage)Frequency and width displayed simultaneouslyOutput waveforms: sine, square, triangleFrequency ...