Ah, interesting. I've got a drives, but bad rollers (and one burned out EOT lamp to replace, which is annoying but should be easy enough).
Any suggestions on sizes for the rollers? I have one that is starting to go, and the other one is goo already. I can probably guess at sizes but I thought I should ask first. I did think it's interesting that they used a SIO/2 in the system to read the tape. I think I realized it was 4 track NRZI encoded from the GEI manual, but didn't realise that (older) QIC wasn't. Patrick Finnegan On Mon, Mar 11, 2019, 13:32 Al Kossow via cctalk <cctalk@classiccmp.org> wrote: > If you open it up, it should have a DEI tape drive in it, which predates > QIC > The data coming off the tape is NRZ instead of GCR > > I just double-checked and the drive pinouts match the DEI CMTD-3400 manual > I know, it isn't obvious at all from the maint manual.. > > This is a problem for a bunch of systems built in the early 80's (Zilog, > Onyx, etc) > > I have a stack of tapes in the queue (incl an 816 tubodos tape) for me to > get fixed-head 4 track reading working > > > > On 3/11/19 10:19 AM, Patrick Finnegan wrote: > > Really? They're DC300 cartridges. > > > > On Mon, Mar 11, 2019 at 1:16 PM Al Kossow via cctalk < > cctalk@classiccmp.org <mailto:cctalk@classiccmp.org>> wrote: > > > > > > > > On 3/10/19 7:48 PM, Patrick Finnegan via cctalk wrote: > > > > > One has the TurboDOS backup/install media for a Televideo TS-816 > that I got > > > from Don Maslin back in the day. I think the other one is related > too, but > > > it was unmarked. > > > > > > > TS-816 tapes aren't QIC > > > >
