test-drb March 2017

test-drb@ccmp.vtda.org

188 participants
235 discussions

Info Needed: DATARAM DR-111 PDP-11 Unibus 16KW Core Memory

by systems.glitch＠gmail.com

Looking for any information and/or documentation on DATARAM DR-111 (assembly 61101) 16Kx16 core memory boards for the Unibus. I've got four in unknown condition, one with a clearly destroyed 8T37. I have a large format scanner with ADF and can digitize print sets if necessary. Thanks, Jonathan

7 years, 4 months

Looking to re-home some NeXT hardware

by COURYHOUSE＠aol.com

we may some parts pieces maybe when we stage our next cube... who knows might pop up and work by it self.. let me know what you are not going to used there. thx Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 3/8/2017 2:07:11 P.M. US Mountain Standard Time, cctalk at classiccmp.org writes: Hi Mark, Works for me or I can post. I am "snuci" on http://www.nextcomputers.org and have been a member for a little while. I have a couple of NeXTs already including only one that I've put on my site at http://vintagecomputer.ca/next-dimension-cube-turbo One of these will go to a friend who has a small collection and is new to NeXT so we'll have another potential member soon :) For the record, that blog post is old. I have the Cube working with dual monitors and have no issues with that one at all. Santo On Wed, Mar 8, 2017 at 3:50 PM, Tapley, Mark <mtapley at swri.edu> wrote: > On Mar 8, 2017, at 1:28 PM, Santo Nucifora <santo.nucifora at gmail.com> > wrote: > > > Hi Mark, > > > > I have reached out to Chris (I am local) and will providing a new home > for the lot. I will be happy to take hi-res pics of the board when I get > them over the weekend. > > > > Santo > > Santo, > that?s great! Wonderful to hear they are going to a good home. > I will try to pass on the photos to > > http://www.nextcomputers.org > > if that?s OK with you, or you can do so directly. That seems to be > one of the biggest active repositories of NeXT information. > If you want to get them running, there is also a lot of useful > information in the forum area on the same site, including pretty detailed > steps on how to implement a SCSI2SD or other hard drives. Some of that may > be helpful with the cube as well. > - Mark > >

7 years, 4 months

Just seen on Reddit S/34

by pete＠petelancashire.com

https://www.reddit.com/r/computercollecting/comments/5pohwr/a_rare_find_in_…

7 years, 4 months

Oki 3305 disk drives

by wrm＠dW.co.za

Hi all I have a couple of Oki 3305BU 1/3 height 5 1/4" drives. On startup the motor spins and the heads load, but the heads don't move. Also, my BIOS tells me I have a drive failure. On taking them apart for a bit of a lube I noticed they have EPROM 8748s inside. Could this be the problem, EPROMs lost data? This would be a first for me, I have EPROMs from the seventies which are still fine. Anybody familiar with these drives? Thanks W

7 years, 4 months

Fluorescent lights (Was: Full immersion emulation)

by COURYHOUSE＠aol.com

have no idea... wife bought them at home depot they were not cheap but just twisted ino fixture and done. I am going to do dame in some of the rooms at SMECC museum too. I like a simple fix and this was! In a message dated 3/7/2017 12:43:24 P.M. US Mountain Standard Time, cctalk at classiccmp.org writes: On 3/7/2017 11:04 AM, Ed via cctalk wrote: > we had tubes with LEDs in them... took old florescent tube out of > fixture.. twisted in the thing with the LEDs in it that hacked wight into > the lighting fixture and done! Ed# > I've asked about those and have no sources of such. They do have to work thru ballasts and deal with starter issues that are no longer relevant, unless you remove and rewire the ballasts / starters out of the old fixtures. The things I've seen are the same form factor as a 4' dual tube dual 40 watt fixture with 110 in and light out. Pull and toss an old dual tube fixture and replace with new LED. But I've not seen the tube solution. I've got a couple of spots the tube thing would be desirable, but no source of such. If you do have a source I'd be interested. thanks Jim

7 years, 4 months

Fluorescent lights (Was: Full immersion emulation)

by COURYHOUSE＠aol.com

we had tubes with LEDs in them... took old florescent tube out of fixture.. twisted in the thing with the LEDs in it that hacked wight into the lighting fixture and done! Ed# In a message dated 3/7/2017 10:23:36 A.M. US Mountain Standard Time, cctalk at classiccmp.org writes: > From: Jon Elson > I have converted our kitchen to LEDs. Yeah, I've already done ours, too. Our fixtures are let into the ceiling, so just replacing them with LED ones wasn't an option; I couldn't find ones that took the same opening. But I bought an under-ceiling fluorescent-sized LED fixture, made by a company called Hampton Bay, to replace an under-ceiling fixture in another room, and I noticed it was just enough smaller than the ones in the kitchen. So I gutted the kitchen fixtures, took Hampton Bay units, discarded the plastic light-shields, and with a bit of trimming, convinced the base plates (which holds the power supply, LEDs, etc) to fit into the existing fixtures. I'm now currently wanting to do my shop, and I'm looking for something which is a bit less work - tubes that I simply plug in, or something like that, are what I'm looking for! Noel

7 years, 4 months

I hate the new mail system

by phb.hfx＠gmail.com

On 2017-03-07 10:45 PM, Paul Berger wrote: > > > > On 2017-03-07 10:38 PM, Fred Cisin via cctalk wrote: >> On Tue, 7 Mar 2017, Eric Christopherson via cctalk wrote: >>> What makes it so that other mailing lists don't unsubscribe people when >>> bounces occur? >> >> This list displays (not "full headers"): >> Date: Tue, 7 Mar 2017 20:23:42 -0600 >> From: Eric Christopherson via cctalk <cctalk at classiccmp.org> >> Reply-To: Eric Christopherson <echristopherson at gmail.com>, >> "General Discussion: On-Topic and Off-Topic Posts" >> <cctalk at classiccmp.org> >> To: "General Discussion: On-Topic and Off-Topic Posts" >> <cctalk at classiccmp.org> >> Subject: Re: I hate the new mail system >> >> >> Some yahoos would do it as: >> Date: Tue, 7 Mar 2017 20:23:42 -0600 >> From: "Eric Christopherson echristopherson at gmail.com [cctalk]" >> <cctalk at classiccmp.org> >> To: "General Discussion: On-Topic and Off-Topic Posts" >> <cctalk at classiccmp.org> >> Subject: Re: I hate the new mail system >> >> >> Notice, that they also munge the From:, but they include the author's >> email address buried within the munged From:. >> >> It is not the "correct" From: and Reply-to:, >> but, apparently some "modern" systems will not tolerate it done >> "correctly". >> Given that it is NOT going to be done "correctly", which among us are >> capable of successfully working around it? > Well in Thunderbird I get two reply buttons "Reply" and "Reply to list" >> >> This discussion is a little like a pedantic grammar argument. >> >> >> -- >> Grumpy Ol' Fred cisin at xenosoft.com > Oppps I never meant to send that..... Paul.

7 years, 4 months

MIPS I-IV instruction set standards

by aap＠papnet.eu

I'm wondering where the MIPS I-IV standards that are referenced everywhere are defined. I was able to actually find what seems to be the IV standard [1] but found no such thing for I-III. I didn't even find any bibliographic references to them. Did they only exist as printed books and nobody bothered to scan them? Or are they under copyright? Would be nice to have them accessible somewhere. [1] http://www.cs.cmu.edu/afs/cs/academic/class/15740-f97/public/doc/mips-isa.p…

7 years, 4 months

3B2 stuff-maybe

by sales＠elecplus.com

I called the only place I know of that supported 3B2 stuff, which is Communications Hardware in TX. They recently had a change in technicians, and a lot of the older stuff they no longer support got culled, but they are willing to look for boards, drives, or whatever would help the collectors get their machines up and running again. I described the documentation set to them, and they will look for it. Any parts you want, send me a list, and they will hunt for me. Cindy Croxton

7 years, 4 months

Fluorescent lights (Was: Full immersion emulation)

by jnc＠mercury.lcs.mit.edu

> From: Jon Elson > I have converted our kitchen to LEDs. Yeah, I've already done ours, too. Our fixtures are let into the ceiling, so just replacing them with LED ones wasn't an option; I couldn't find ones that took the same opening. But I bought an under-ceiling fluorescent-sized LED fixture, made by a company called Hampton Bay, to replace an under-ceiling fixture in another room, and I noticed it was just enough smaller than the ones in the kitchen. So I gutted the kitchen fixtures, took Hampton Bay units, discarded the plastic light-shields, and with a bit of trimming, convinced the base plates (which holds the power supply, LEDs, etc) to fit into the existing fixtures. I'm now currently wanting to do my shop, and I'm looking for something which is a bit less work - tubes that I simply plug in, or something like that, are what I'm looking for! Noel

7 years, 4 months

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test-drb March 2017