3740 DE (Data Entry) format actually had the option of
80 or 128
characters / "columns" per record. The basic 3741/3742 data entry
station only did 80 characters per record, although the diskette
sectors were always 128 data bytes. You had to order the optional
feature (a plug-in ROM card) to support 128 characters per record.
There is an original 3741 Data Station manual up on Ebay right now.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=51…
Darn tootin' I know the seller.
William Donzelli
aw288 at
osfn.org