Yes, 306 cyls with 2, 4 or 6 heads are consistent with what i took from one of the many PDFs

Code:
Type H drives, used on the TRS 80-II and DEC Rainbow 100
6 MB :  -chs 306,2,20 -ss 512
11 MB:  -chs 306,4,20 -ss 512
20 MB:  -chs 306,6,20 -ss 512


I wasn't quite sure, given the 20 sector oddity...

Last edited by Bavarese; 01/07/17 09:59 AM.