Shain & Young was a small company in Caneyville, KY that produced radio boards in the late 60s/early 70s. I'm refurbishing the one I used at WBGN in Bowling Green, KY back then. The separate power supply is long gone. Honus Shain has supplied with enough info I could build one but it would be interesting to find an original one. A few Virginia stations bought these boards. Honus remember one station in Virginia buying three. Some Shain & Young boards even went to South America.