I don't need electronic gadgets to find and catch fish. Only gadget I need is my old Zebco 33 rig.
Don't get me wrong. I love my gadgets, but, I could get by without them.
I am 3 decades older than the first "fishfinder" (Lowrance greenbox). Heck, I taught Noah dead reckoning.
There are still a few of us around that could go out and catch fish without the use of nicads,etc.