Working principle: The following figure is a circuit diagram of a snoring suppressor. It consists of three parts: the humming sound amplifying circuit, the monitoring control circuit and the stimulating electrode.
The pickup B is used to receive the snoring sound of the snorer, and after being amplified by two stages of power, it is added to the forced reset pole 4 of the 555. 555 and R5, R6, RP1, C3, etc. form a multivibrator with an oscillation frequency f0=1.44/(R5+RP1+2R6)C3.
HCS-3300: high speed heavy duty coin counter with extended hopper
HCS-3500AH: high speed heavy duty coin counter with motorized hopper, bigger capacity, control the flux, more friendly for big coins and tokens
CS-10S: portable and compact coin counter
Coin Counter,Portable Coin Counter,Coin Counter With Detection,Heavy Duty Coin Counter
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