DerStrom8
Super Moderator
Hey everyone!
I'm fairly new here, so please bear with me
I just built this circuit (link shown below) for an electronic keys finder. It's designed to respond to a "fizzle" according to the site. However, when I turned on the power to my breadboard, the buzzer started it's long "answer" tone, which soon faded out (like it was supposed to), but then it started back up again without me making a sound. It continues to do this unless I turn off the power. I was just wondering if anyone could tell me what might make it do that. Could it be that the N4 inverter is damaged and the circuit responds to ordinary noise? Or maybe an extra surge of power resets it and causes it to restart?
The circuit can be found at
http://www.diy-electronic-projects.com/p104-Keys-Finder
I would greatly appreciate any help that you guys can give me!
Thanks in advance!
-Der Strom
I'm fairly new here, so please bear with me
I just built this circuit (link shown below) for an electronic keys finder. It's designed to respond to a "fizzle" according to the site. However, when I turned on the power to my breadboard, the buzzer started it's long "answer" tone, which soon faded out (like it was supposed to), but then it started back up again without me making a sound. It continues to do this unless I turn off the power. I was just wondering if anyone could tell me what might make it do that. Could it be that the N4 inverter is damaged and the circuit responds to ordinary noise? Or maybe an extra surge of power resets it and causes it to restart?
The circuit can be found at
http://www.diy-electronic-projects.com/p104-Keys-Finder
I would greatly appreciate any help that you guys can give me!
Thanks in advance!
-Der Strom
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