Here is a new idea for you. Flipping through the channels I saw on food network where a guy was making beef jerkey. He said that the heat that is created by dehydrators is not so good for the jerkey (I forgot the logic he used) so he uses a "cold drying" method which is pretty simple.
He had a good ole standard window box fan like this. We probably all have them laying around.



Then he got some pleated furnace/air conditioner air filters like you use in your house, about a buck each at Wal-mart.

Put the jerkey in the pleates, stack as many filters as you need, bungie them to the fan and plug it in for 6 to 8 hours with the air blowing through the filters/over the jerkey.

I'm going to try it this year just for fun.