How to build wand electrodes and fish finder schematics
In my previous article about how to put together a mormyrid "fish finder" from two inexpensive Radio Shack hobbyist amplifiers, I described using cheap speaker wire for the electrodes. I have just added to this site instructions for building the much nicer electrodes we have used in the Hopkins lab for many years, written by Garry Harned who designed and built them. There are two documents, one written in 2000 , the other in 2007 .