RadioShack files for Chapter 11 bankruptcy

RadioShack reportedly has filed for Chapt. 11 bankruptcy. The plan includes an asset purchase agreement with Standard General, it's largest investor, and Sprint to use a store-within-a-store concept, CNBC reports. This means the electronics retailer would keep its name on some of the acquired stores. It's other underperforming locations reportedly would close. The Associated Press reported that RadioShack will sell up to 2,400 stores. The retailer reported assets of $1.2 billion and debts of $1.3…