
    428 A.2d 694
    Commonwealth v. Roberts, Appellant.
    Submitted December 6, 1979.
    John W. Packel, Chief, Appeals, Assistant Public Defender, for appellant; Eric B. Henson, Assistant District Attorney, for Commonwealth, appellee.
    Before BROSKY, WICKERSHAM and EAGEN, JJ.
    
    
      
       Chief Justice Michael J. Eagen of the Supreme Court of Pennsylvania, is sitting by designation.
    
   Judgment of sentence affirmed.  