Re: 9-Track Magtape Drive ID
> On Jun 1, 2019, at 4:22 PM, Steve Malikoff via cctalk > wrote: > > BTW If the old rubber rings one the hubs are too > expanded and won't allow a tape reel to slide on, just replace with a # BS336 > O-ring > from a bearings/seals/gasket shop. These are cheap, readily available and > takes seconds > to install for a perfect fit. Thanks! That's bound to be helpful advice... if not now, then someday in the future. -- Mark J. Blair http://www.nf6x.net/
Re: 9-Track Magtape Drive ID
Mark said > Does anybody here recognize the make and model of this tape drive? > > https://pbs.twimg.com/media/D7_mfdfUIAMcTly.jpg > > -- > Mark J. Blair, NF6X > http://www.nf6x.net/ As Al said, Kennedy 9000. Slide the test buttons door panel upwards on the top left and all will be revealed :) I racked one of these a fortnight ago. BTW If the old rubber rings one the hubs are too expanded and won't allow a tape reel to slide on, just replace with a # BS336 O-ring from a bearings/seals/gasket shop. These are cheap, readily available and takes seconds to install for a perfect fit. Steve.
Updates to the Dick Smith System 80 site
Apologies for cross-posting. I've added a few new bits and pieces to the Dick Smith System 80 site. If anyone is interested, take a look at the first three entries under this link. https://www.classic-computers.org.nz/system-80/whats_new.htm Incidentally, this month is somewhat of a milestone. It's 20 years since the site went live! Terry Stewart (Tez)
Re: 9-Track Magtape Drive ID
> On Jun 1, 2019, at 15:27, John H. Reinhardt via cctalk > wrote: > > Congrats!! Should be fun to play with. I just picked up a Micro PDP-11/53 > which is about the biggest I can fit into my office/computer room. lol > Neat! I’d like to get a PDP-11 in that form factor someday.
Re: Found today
On Sat, Jun 1, 2019, 4:19 PM Chris Pye wrote: > > > On 2 Jun 2019, at 5:07 am, Warner Losh via cctalk > wrote: > > > > Found the Ultrix poster from 1984 I was asking about today when cleaning > > out my truck: > > > > https://twitter.com/bsdimp/status/1134855890689855488 > > > > Warner > > > I see that there is a Pro sitting on the desk, was there are version of > Ultrix for the Pro 350/380? Yes. Ultrix, venix and 2BSD all run on the pro. Warner
Re: 9-Track Magtape Drive ID
On 6/1/2019 5:24 PM, Mark J. Blair via cctalk wrote: On Jun 1, 2019, at 14:57, John H. Reinhardt via cctalk wrote: Is this the system that was on Reddit? Yes. I’ll be fetching it next weekend. I’m excited! I wonder if the hard drive is still usable, and if there is anything interesting on it? By a chance meeting with my neighbor today, I learned he has a bunch of pallet racking from a defunct business he emptied out. He offered that I could go grab some for myself. He also mentioned that he planned to bring some to his farm next door to me before he sells off the rest. Since I’m planning to rent a truck next weekend anyway, I offered to help out by hauling for both of us in exchange for taking a skim off the top of the pile. It’ll be a busy weekend! -- Mark J. Blair http://www.nf6x.net Congrats!! Should be fun to play with. I just picked up a Micro PDP-11/53 which is about the biggest I can fit into my office/computer room. lol -- John H. Reinhardt PRRT #8909 C HS #11530 N-Trak #7566
Re: 9-Track Magtape Drive ID
> On Jun 1, 2019, at 14:57, John H. Reinhardt via cctalk > wrote: > Is this the system that was on Reddit? Yes. I’ll be fetching it next weekend. I’m excited! I wonder if the hard drive is still usable, and if there is anything interesting on it? By a chance meeting with my neighbor today, I learned he has a bunch of pallet racking from a defunct business he emptied out. He offered that I could go grab some for myself. He also mentioned that he planned to bring some to his farm next door to me before he sells off the rest. Since I’m planning to rent a truck next weekend anyway, I offered to help out by hauling for both of us in exchange for taking a skim off the top of the pile. It’ll be a busy weekend! -- Mark J. Blair http://www.nf6x.net
Re: Found today
> On 2 Jun 2019, at 5:07 am, Warner Losh via cctalk > wrote: > > Found the Ultrix poster from 1984 I was asking about today when cleaning > out my truck: > > https://twitter.com/bsdimp/status/1134855890689855488 > > Warner I see that there is a Pro sitting on the desk, was there are version of Ultrix for the Pro 350/380?
Re: 9-Track Magtape Drive ID
On 6/1/2019 1:23 PM, Mark J. Blair via cctalk wrote: Thanks! I am taking the whole system. It's in a rack with a PDP-11/34A, a System Industries 9400 controller, and what looks to me like a Fujitsu M228x series hard drive: https://pbs.twimg.com/media/D77fRMFU0AEQtSO.jpg I grabbed the M228x manuals from Bitsavers to look up how the spindle and positioner locks work. I had been planning to de-rack it all so my dad and I could load it into my pickup truck in bite-sized pieces, but I think I would be better off renting a box truck with a lift gate. What are the chances that it's the same PDP-11/34A that Warner did backups on? :D Would the brown panel between the tape drive and computer be a filler panel, or part of the 11/34A? I don't know anything about the system configuration yet other than what can be seen in that picture. Is this the system that was on Reddit? -- John H. Reinhardt PRRT #8909 C HS #11530 N-Trak #7566
Found today
Found the Ultrix poster from 1984 I was asking about today when cleaning out my truck: https://twitter.com/bsdimp/status/1134855890689855488 Warner
Re: 9-Track Magtape Drive ID
Cool. So that means that this 11/34A has more backplane slots than the base model? The programmer panel is also appealing. I presume that the Kennedy 9000 doesn’t have a Pertec interface, then? It remains to be seen whether I ever start my 11/44 restoration vs. moving it along to another collector and using some of the boards I accumulated for it in the 11/34A. I’m on the fence about that. -- Mark J. Blair http://www.nf6x.net
Re: 9-Track Magtape Drive ID
On 6/1/19 11:23 AM, Mark J. Blair via cctalk wrote: > Would the brown panel between the tape drive and computer be a filler panel, > or part of the 11/34A? it is the top half of the 10.5" CPU chassis the tape controller is probably internal to the cpu and with have three ribbon cables going from the drive to the controller (read,write and control) there should be a 26 and 60 pin ribbon cable going to the smd drive from the SI and a unibus cable from the SI to the CPU
Re: 9-Track Magtape Drive ID
Looks like a Kennedy 9000 series, with the sliding panel and all. On Sat, Jun 1, 2019 at 12:53 PM Mark J. Blair via cctalk wrote: > > Does anybody here recognize the make and model of this tape drive? > > https://pbs.twimg.com/media/D7_mfdfUIAMcTly.jpg > > -- > Mark J. Blair, NF6X > http://www.nf6x.net/ >
DEC QBUS power supply minimum load
The M7264 CPU thread reminded me of the collection of LSI-11 CPU's that I have and want to get up and running. A very useful thread. This may have been covered some time in the past, but, my question is "What is the minimum load for the power supply in the BA11-M, -N and BA23 boxes?" Is it possible to create a load board, like the board you find in the sbox BA213 VAX's that ensure a minimum load on the power supply? Doug
Re: 9-Track Magtape Drive ID
Thanks! I am taking the whole system. It's in a rack with a PDP-11/34A, a System Industries 9400 controller, and what looks to me like a Fujitsu M228x series hard drive: https://pbs.twimg.com/media/D77fRMFU0AEQtSO.jpg I grabbed the M228x manuals from Bitsavers to look up how the spindle and positioner locks work. I had been planning to de-rack it all so my dad and I could load it into my pickup truck in bite-sized pieces, but I think I would be better off renting a box truck with a lift gate. What are the chances that it's the same PDP-11/34A that Warner did backups on? :D Would the brown panel between the tape drive and computer be a filler panel, or part of the 11/34A? I don't know anything about the system configuration yet other than what can be seen in that picture. -- Mark J. Blair http://www.nf6x.net/
Re: 9-Track Magtape Drive ID
45ips tension arm 800/1600 looking at the 'density' slide switch make shure you get the cables and controller board if you don't take the whole system On 6/1/19 10:56 AM, Al Kossow via cctalk wrote: > kennedy 9000 > > On 6/1/19 10:53 AM, Mark J. Blair via cctalk wrote: >> Does anybody here recognize the make and model of this tape drive? >> >> https://pbs.twimg.com/media/D7_mfdfUIAMcTly.jpg >> >
Re: 9-Track Magtape Drive ID
I don't know for sure, but it looks a heck of a lot like the drive I loaded for backups on a 11/34a that the company I worked summers for had. 1983 or 1984 was the time frame. Warner On Sat, Jun 1, 2019, 11:53 AM Mark J. Blair via cctalk < cctalk@classiccmp.org> wrote: > Does anybody here recognize the make and model of this tape drive? > > https://pbs.twimg.com/media/D7_mfdfUIAMcTly.jpg > > -- > Mark J. Blair, NF6X > http://www.nf6x.net/ > >
Re: 9-Track Magtape Drive ID
kennedy 9000 On 6/1/19 10:53 AM, Mark J. Blair via cctalk wrote: > Does anybody here recognize the make and model of this tape drive? > > https://pbs.twimg.com/media/D7_mfdfUIAMcTly.jpg >
9-Track Magtape Drive ID
Does anybody here recognize the make and model of this tape drive? https://pbs.twimg.com/media/D7_mfdfUIAMcTly.jpg -- Mark J. Blair, NF6X http://www.nf6x.net/
COMX-35
Anyone happen to have one for sale/trade?
Re: 11/93 next step
On 6/1/2019 12:11 AM, Rod Smallwood via cctalk wrote: Hi Well we are moving forward. The 160336 alternate RQDX3 address and vector have been confirmed as OK by one of our Techno Mages. So rather than an RX50 I'll give an RX33 whirl. A floppy disk way in means I can enhance the baseline RT system. Time to dig out all of the Q-bus controllers and see what else we can add. I have a Viking SCSI controller. That might be interesting as an alternative to the CQD. I think I may have Q bus controllers for my RX01 and RX02. AKA as 'Clonk City' 11/93 is no end of fun. Best thing since my brother fell in the slurry pit 60 years ago. Rod About the Viking SCSI controller, the ones I have only allow 2 scsi devices. Useful, until you want to hook up a couple of disks and a tape drive. Doug
Re: Uniprobe
I hope the creator of the uniprobe will someday create a Q probe! From: cctalk on behalf of Jim Manley via cctalk Sent: Saturday, June 1, 2019 2:35 AM To: marc.how...@ieee.org; Marc Howard; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Uniprobe http://retrocmp.com/tools/uniprobe On Fri, May 31, 2019 at 11:44 PM Marc Howard via cctalk < cctalk@classiccmp.org> wrote: > OK, stupid question time. I'm at work and I can't find retrocomp's > website. Can you point me to it? > > Thanks, > > Marc Howard > > On Fri, May 31, 2019 at 2:36 PM Brian Roth via cctalk < > cctalk@classiccmp.org> > wrote: > > > If anybody is interested in building Jorge Hoppe's Uniprobe, I have some > > PCB's available. I made a few extra to keep the price down. Price is $40 > ea > > shipped in the CONUS. These have Silver fingers rather than Gold but > should > > still hold up well. Build information is on Retrocomp. > > > > Brian. > > >
Re: Uniprobe
http://retrocmp.com/tools/uniprobe On Fri, May 31, 2019 at 11:44 PM Marc Howard via cctalk < cctalk@classiccmp.org> wrote: > OK, stupid question time. I'm at work and I can't find retrocomp's > website. Can you point me to it? > > Thanks, > > Marc Howard > > On Fri, May 31, 2019 at 2:36 PM Brian Roth via cctalk < > cctalk@classiccmp.org> > wrote: > > > If anybody is interested in building Jorge Hoppe's Uniprobe, I have some > > PCB's available. I made a few extra to keep the price down. Price is $40 > ea > > shipped in the CONUS. These have Silver fingers rather than Gold but > should > > still hold up well. Build information is on Retrocomp. > > > > Brian. > > >
