亚博竞彩APP

Electronic circuits that use the 555 Timer

555 Timer Circuits

555 Timers are fun and a great way to start learning electronics

MUSIC BOX Circuit

This circuit produces 10 different tones and by selecting suitable values to change the voltage on pin 5, the result can be quite pleasing. Note: the two unused outputs of the 4017 produce a tone equal to that produced by the 555 when pin 5 has no external control voltage.



Comment on this circuit or view the Electronic Circuits Community Forum.

乐优彩票天天红单下载 乐优彩票网址是多少 乐优彩票登入,备用,官方网址 乐优炫彩app下载 乐优炫彩app天天红单 乐优炫彩官网 乐博28app下载 乐八彩票 乐优炫彩彩票app下载 乐优炫彩app