Noise generator with various sounds composed of HT2880

Published:2011/4/12 0:52:00 Author:Ecco | Keyword: Noise generator , various sounds | From:SeekIC

This circuit can produce eight kinds of sounds, that are two kinds of guns' sounds, two bomb sounds, dual-tone melody, the game sound, animal sounds and the sound of rifles. The eight sounds can be played by rotary switch S2 and button switch. HT2880 is a CMOS LSI's ROM chip. In the circuit, the transistors VT1 and VT2 connects as Darlington tubes, they are used as forecast the output signal of pins.



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