HP41c fullnut CPU boards

[Johnboy]

Hi All,

Diego documents difference 41c/cv/cx CPU boards at : https://www.clonix41.org/Maintenance/hp-41_PCBs.htm

I have two 41c CPU boards of the "2 transistor" type. Is there anyway to tell of they have the same or different ROM version ?

Thanks
John

[Sylvain Cote]

Have a look at Diego's HP-41 Memory Chips document