tesoro bandido

I need a tesoro Bandido manual to download. This is the first model of this detector. There is a black knob on the back of the housing that I need to know what it does. And just general information on how to ground balance and how to adjust for best operation. Thank you

Hello everyone, I have always loved metal detecting. I had a toy detector when I was young. I used to find tons of civil war lead bullets, (the white ones). I did not know what they were at the time. I was just having fun. My family was busy so they never paid much attention to the stuff I...