I’ve been listening to Security Now for a couple years, and Steve Gibson has an inspiring story about how he, as a child, constructed a device, which then was called “The Portable Dog Killer“, which really is over stating what it does. It’s just a very loud dog whistle. It is also called “TrebleBlaster” and “Portable Dog Trainer”. Well anyway, Steve has since tried a few more circuit designs. I used the Pyle Tweeter for $6.40 on Amazon and my bill from Digikey was $27.48, for a Grand total of $33.88.
There is a Google Group called Portable Sound Blaster that will have all the lastest info.
I used the Version 2.2.2 of the schematic: TQC_v2.2.2.pdf
First I tried out the circuit on a breadboard:
It got up to 115dB when 12 inches from the tweeter. AWESOME! Thats as loud as sandblasting or Loud Rock Concert according to this chart.
Next I found a piece of electrical PVC pipe that has a shape like a flash light, that can fit the pyle tweeter:
Yep, that worked, next I drilled the holes for button switches, and soldered together the circuit board:
Next, Its time to try it out. I will update this post once I’ve done some tests.
Update: I tried it on the neighbor dog when he is barking and it doesnt scare him at all, so I assume it depends on the dog.