We had been needing a depth finder on the jon boat, but didn't want to spend the $$ for one. I had an old Lowrance x22a from about 1996, but the transducer was bad. A replacement transducer cost more than I could buy a complete working used system on the web. I put a message out on the internet, and found a guy who had an old transducer with a bad unit, and I got that. I made a bracket for the rear of the boat, modified an old CB radio bracket to mount the x22a on the inside of the transom, and got it all wired up. This is electronics on the cheap for fishing :-) Here's a few pics...
