BK Precision 3001 [3001] 20 Hz to 150 kHz, Sine/Square Wave Audio Generator

The BK Precision 3001 generates low-distortion sine waves at 46 discrete frequencies. Output impedance is 600 Ω at the dual banana jacks and the output voltage is continuously adjustable up to 1.2 V (RMS) into an open circuit. Output flatness is ±0.5 dB. A 5 Vpp square wave is provided at separate banana jacks for synchronization. Frequency accuracy is 3% from 20 Hz to 100 kHz. The unit is powered by a 9 V battery.