Sine wave message caused by the appliance depends on output wave shape be set;The output message will be regulated by te buffer of the machine at first and regulated attenuator has 0-60dB setting range on the 60? impedance. Wen family bridge adapted on the main body of the shaking & burning appliance,set the phases used for regulated electric capacity. The buttons set on the board may change frequency within the range;Amortized amplifier is a wo phase direct current amplifier, offer the output pole about low impedance. Because of using non-linearity hearing resistance on minus direction for turning wheel, our machine can do the sine wave shape steadily in no time with the lowest distortion;Adapt Smith Special integer circuit on square wave integer appliance and high speed rising and descending square wave will be produced. Output pole is push-pull direct current amplifier and can offer low impedance output circuit within DC-1KHz;Output voltage balance may be adjusted by 2 absolute attenuator every 20dB and 40dB or in 60dB series on 600? loads. The machine offer ±24V for power supply for choosing alternating current 110V or 220V.because of adapting steady voltage, it can offer steady output within setting range in spite of alternating current unsteady.