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Quiet transistor driven buzzer with a bc337 transistor and 5volts

picme 6981 5
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  • #1 10931421
    picme
    Level 9  
    Posts: 7
    Hi, I've been driving a small buzzer with a BC337 transistor and 5 volts. Unfortunately, it is far too loud. I have introduced a small 10k pot thinking I could use this to reduce the sound. When I increase the resistance it starts to reduce the sound a little then the sound stops hardly reducing it at all. Is there any other way I could do this? I really want it very quiet if possible. Sorry I have no information on the buzzer except that it's rated at 5V and Arduino compatible.
    Quiet transistor driven buzzer with a bc337 transistor and 5volts
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  • #2 10934376
    predom
    Level 26  
    Posts: 1099
    Help: 84
    Rate: 64
    Try to connect it in this way. If it doesn't work, you'll need to change the buzzer to the quieter one... PS What "Arduino compatible buzzer" mean...? I think you could use any 5V buzzer here... Has it got its own internal generator? PS Sorry for my english...I'm not good at this language...

    Quiet transistor driven buzzer with a bc337 transistor and 5volts
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  • #3 10937462
    picme
    Level 9  
    Posts: 7
    Thank you for your prompt reply, I will connect it up and see. I'm not really sure what "Arduino Compatible" means, I guess you can hook it up without using a transistor.
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  • #5 10946044
    picme
    Level 9  
    Posts: 7
    Didn't have much luck with a 10k pot. I was hoping to reduce the sound output down to a beep that you would get from a digital watch. There are buzzers out there that run from 3 volts but I'm sure it would still be very loud. Any ideas?
  • #6 11289875
    lorenzo8
    Level 1  
    Posts: 1
    Sorry, maybe low tech fix - one piece of adhesive tape (common) on the hole of the buzzer. I do it that way for my kitchen timer.
    P.S. one photo or link images it might be better
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