Arnold Man Is Avid Vintage Radio CollectorDr. Steve Hansman likes to think of himself as a kind of archaeologist. But the artifacts he seeks aren't buried in the dirt. They're at flea markets and antique shops, posted on eBay, or available by networking through people who share his passion. Radios made by Atwater Kent, Crosley, Grebe, Kennedy, RCA and Zenith are Hansman's quarry.