BUFFALO, MINNESOTA — The Maple Grove Radio Club will hold its 39th Annual Midwinter Madness Hobby Electronics Show from 8 a.m. to noon, Saturday, March 18 at the Buffalo Civic Center, 1306 County Road 134. Phone: (763) 537-1722. Website: . Talk-in 147.000+ (PL 114.8). VE exams, ARRL card checking