c205c ac maindec-x8-dhtda-c-d AXTDAC0 MOD TD8EDT DECtape System c207c ak maindec-x8-dhtda-c-pb AXTDAC0 MOD TD8EDT DECtape System c205b ac maindec-x8-dhtda-b-d AXTDAC0 MOD TD8EDT DECtape System c207b ak maindec-x8-dhtda-b-pb AXTDAC0 MOD TD8EDT DECtape System c205a ac maindec-x8-dhtda-a-d AXTDAC0 MOD TD8EDT DECtape System c207a ak maindec-x8-dhtda-a-pb AXTDAC0 MOD TD8EDT DECtape System