HowTo make doorbell sound circuit - simple (easy)
24Simple #DIY #homeMade #HowTo make doorbell #electronic kit can be found on eBay include - but if you don't want to wait or pay for the it you can make one since there is schematic which can be downloaded for free on the #eBay listing. The output sound of this doorbell circuit pretty much the one use by 7 Eleven outlet.
Doorbell project electronic components
1 x momentary switch
3 x 47k electrolytic capacitor
2 x 4148 diode
1 x 10 uf capacitor
3 x 103 ceramic capacitor
1 x 8 Ohm speaker
100 uf Capacitor
This doorbell can run on 3 volts battery using 2 x AA batteries.
Circuit Schematic Diagram link http://howtodosteps.blogspot.my/2017/02/simple-doorbell-circuit-using-555-timer.html
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