Adopting ICL8038 and high-speed operational amplifier, with higher accuracy;It can output sine/triangular/square wave/forward and reverse sawtooth waveforms;_x000D_ Frequency range: 5Hz~400kHz; Duty cycle range: 2~95% (adjustable);_x000D_ Support dual power amplifiers without blocking capacitors, ensuring high and low frequency signal distortion;_x000D_ Adjustable frequency and amplitude;Frequency adjustment has coarse and fine tuning functions;All are through-hole components, easy to install._x000D_ Different batches may have different appearance, which does not affect use.Depending on the batch, the colors of electronic components/knobs, etc. may be different, which does not affect use._x000D_ _x000D_ Parameter:_x000D_ Power supply voltage: 12V~15V_x000D_ Frequency range: 5Hz~400KHz (adjustable)_x000D_ Duty cycle range: 2~95% (adjustable)_x000D_ Low distortion sine wave: 1%_x000D_ Low temperature drift: 50ppm/ C_x000D_ Output triangular wave linearity: 0.1%_x000D_ DC bias range: -7.5V~7.5V_x000D_ Output amplitude range: 0.1V~11VPP (working voltage 12V)_x000D_ Interface Description:_x000D_ 1. SQU: Output rectangular wave_x000D_ 2. SIN/TA: Output sine wave or triangular wave_x000D_ 3. GND: Grounding_x000D_ 4. Potentiometer function:_x000D_ 1) Duty cycle: Adjusting the duty cycle range_x000D_ 2) Frequency regulation: Adjusting the frequency_x000D_ 3) Signal adjustment: Signal DC bias adjustment_x000D_ 4) Amplitude adjustment: sine wave, triangular wave, sawtooth wave amplitude modulation_x000D_ Pre purchase instructions:_x000D_ This kit (loose parts) is not a finished product and is only used for scientific research and experiments._x000D_ This kit is not suitable for customers who require finished products._x000D_ Assembling and debugging the kit (loose parts) requires corresponding knowledge and skills._x000D_ Colour:Black_x000D_ Material:FR4+ electronic components_x000D_ _x000D_ Package Contents:_x000D_ 1 x signal generator DIY kit without shell_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_