jbelectric777
Member
I have been "dabbling" with caps and resistance with the 555 timer and what I am trying to do is to get a small speaker to oscillate fast enough for the sound to be super high and then even almost silent. I got the idea from someones dog whistle a while back. Now i know how to make the 555 go from slow to fast using an adjustable pot but when the resistance gets too low it seems like the IC becomes saturated and doesnt oscillate anymore, the load (in this case i was using a piezo buzzer) just stayed on. So if you guys and gals can tell me how the 555 works then the schematic will be more understanding to me, I know the very basics but I cant move on till I know not only how to hook it up but why we hook it up that way. And also note, I must have butted in on someones thread a little while back, sorry about that, I havent been on in a while and I forgot how to start a new thread, I think I have it right this time. Thanks in advance, Jim