A microphone jammer is a device that broadcasts ultrasound waves and, due to the non-linearity of mic amplifiers in small gadgets (i.e. smartphones) it overwhelms the microphone so the only sound the mic hears is hissing/beeping.
On the internet there is surprisingly not much about these devices. There is however this link and the github schematic is this one:
So, I am a relative noob with electronics but the questions are:
- Does the 555 here generate just a wave or some other noise?
- What are
- What is this transformer for and can I modify the circuit not to use a transformer, as I can't find the model?
- Can I use the UST40T ultrasonic speaker on this schematic?
- What else do I need to modify to make it work?
- Can one or two more speakers be attached or will I need a more powerful amp?
If I need to modify something, assume I can supply it with 5V, 9V and 12V.
P.S. Are these ultrasonic speakers easily broken/blown/damaged?
Thanks in advance.