H3NRY, when you say three different versions, Did you mean three sets of Hi & Lo ROMs?
I am only aware of two ROM sets. The original (340-0220/21-A), and the 400K floppy stepper-motor revision (342-0220/21- B) . Where does the third set fit in?
I am only aware of two ROM sets. The original (340-0220/21-A), and the 400K floppy stepper-motor revision (342-0220/21- B) . Where does the third set fit in?