Features: 1. Accurate incisions and interfaces ensure perfect suitability, suitability for installation locations, and easy to install. 2. The product adopts high-quality material, which can effectively avoid corrosion and wear, and is durable to use. 3. Professional chip sets provide excellent performance in the system. 4. Easy operation, anti-aging and long service life. 5. NE555 multi-channel waveform generator can produce four kinds of waveforms: square wave, sawtooth wave, triangular wave and sine wave. Selecting a waveform output by jumping cap, the amplitude is adjustable. 6. The circuit is simple, the operation is convenient, can exercise the welding production ability, at the same time is suitable for the student to study the oscilloscope and so on the instrument to cooperate the use. 7. The line on the glass fiber circuit board can withstand more current than the electrical board, can better adapt to the requirements of various experiments. 8. After the solder joint is sprayed, the impedance is more stable and reliable, so that the solder joint can be welded better, and the multiple welding pad is not easy to fall off, which increases the experimental fault tolerance and success rate. Specification: Condition: 100% Brand New Item Type: Multichannel Waveform Generator DIY Parts Material: PCB Power Supply Voltage: DC6-12V (Recommended 9V) Output Waveform: Square Wave, Sawtooth Wave, Triangular Wave, Sine Wave Weight: Approx. 55g Package List: 5 x PCB Board 5 x Set of Fittings 1、Accurate incisions and interfaces ensure perfect suitability, suitability for installation locations, and easy to install. 2、The product adopts high-quality material, which can effectively avoid corrosion and wear, and is durable to use. 3、Professional chip sets provide excellent performance in the system. 4、Easy operation, anti-aging and long service life. 5、NE555 multi-channel waveform generator can produce four kinds of waveforms: square wave, sawtooth wave, triangular wave and sine wave. Selecting a waveform output by jumping cap, the amplitude is adjustable.