Dahlquist DQ20i question

I just scored a pair of these at a rummage sale and was wondering if anyone knew when this particular model was manufactured? Thank you.

pzeck309-17-2008 6:37pm

pescolar Details Discussions Posts This discussion Message User 128 posts 09-17-2008 at 08:56pm Copy Comment URL Report Comment Edit Delete between late 80's and early 90's.