Re: Tape reading question

2019-03-12 Thread Mattis Lind via cctalk
tisdag 12 mars 2019 skrev Al Kossow via cctalk : > > > On 3/11/19 10:42 PM, Mattis Lind via cctalk wrote: > > A few years back AJ Palmgren helped me recover data from a S8000 tape > using > > his hacked QIC drive. > > Did you ever put the tape images on line anywhere? The image is a backup tar

Re: Tape reading question

2019-03-12 Thread Al Kossow via cctalk
On 3/11/19 10:42 PM, Mattis Lind via cctalk wrote: > A few years back AJ Palmgren helped me recover data from a S8000 tape using > his hacked QIC drive. Did you ever put the tape images on line anywhere?

Re: Tape reading question

2019-03-11 Thread Mattis Lind via cctalk
A few years back AJ Palmgren helped me recover data from a S8000 tape using his hacked QIC drive. He fed the data coming off the drive into a Saleae logic analyzer. I took the gigantic dumps and wrote a software decoder. The data on the tape are MFM encoded. It went pretty well and I could

Re: Tape reading question

2019-03-11 Thread Chuck Guzis via cctalk
On 3/11/19 5:51 PM, Dennis Boone via cctalk wrote: > > 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.. > > Was this thing referred to as a "Funnel"? Maybe that was a Prime > specific name though. > My

Re: Tape reading question

2019-03-11 Thread Chuck Guzis via cctalk
On 3/11/19 5:51 PM, Dennis Boone via cctalk wrote: > > 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.. > > Was this thing referred to as a "Funnel"? Maybe that was a Prime > specific name though. No, that

Re: Tape reading question

2019-03-11 Thread Al Kossow via cctalk
On 3/11/19 5:51 PM, Dennis Boone via cctalk wrote: > > 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.. > > Was this thing referred to as a "Funnel"? sounds familiar. several companies made 6400 bpi

Re: Tape reading question

2019-03-11 Thread Al Kossow via cctalk
On 3/11/19 5:19 PM, Chuck Guzis via cctalk wrote: > I've got a 3M DCD-3 4-track drive if you're interested. I have some Kennedy drives that should work, just have to find the time to get to it. I'm trying to clear some 1/2" tapes off the shelves this week.

Re: Tape reading question

2019-03-11 Thread Dennis Boone via cctalk
> 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.. Was this thing referred to as a "Funnel"? Maybe that was a Prime specific name though. De

Re: Tape reading question

2019-03-11 Thread Chuck Guzis via cctalk
On 3/11/19 10:32 AM, Al Kossow via cctalk 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

Re: Tape reading question

2019-03-11 Thread Chuck Guzis via cctalk
On 3/11/19 3:45 PM, Chuck Guzis via cctalk wrote: > I use 4mm ID silicone vacuum hose. Works well and requires no > adhesive--just stretch it over the bare hub. e.g. Something like ebay item 132808966973 I use the red stuff, but it comes in a variety of colors. I re-did the PVC vacuum hoses

Re: Tape reading question

2019-03-11 Thread Chuck Guzis via cctalk
On 3/11/19 10:49 AM, Patrick Finnegan via cctalk wrote: > 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

Re: Tape reading question

2019-03-11 Thread Patrick Finnegan via cctalk
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

Re: Tape reading question

2019-03-11 Thread Al Kossow via cctalk
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

Re: Tape reading question

2019-03-11 Thread Patrick Finnegan via cctalk
Really? They're DC300 cartridges. On Mon, Mar 11, 2019 at 1:16 PM Al Kossow via cctalk 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

Re: Tape reading question

2019-03-11 Thread Al Kossow via cctalk
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