Hey that actually sounds real purty!  Like a little French epinette! 

Here's a little me playing it:

Here's some info about Tut Taylor who made these instruments  https://athensdulcimerclub.wordpress.com/2013/07/07/hee-haw-plank-dulcimer/

Video of Junior Samples and Roy Clark playing a plank dulcimer

Hey, cool!  Have fun with it!

I had to glue the Fretboard and bridge back down, and I've only string for it right now, but that one string sounded pretty good.

I'm glad you found one!  I loved Hee-Haw when I was a kid.  How does it sound?