6648a	ac	maindec-08-djexb-a-d	2K TO 32K PDP-8A PROCESSOR EXERCISER
6650a	ak	maindec-08-djexb-a-pb	2K TO 32K PDP-8A PROCESSOR EXERCISER
6651a	ak	maindec-08-djexb-a-pm	2K TO 32K PDP-8A PROCESSOR EXERCISER