test-drb February 2021

test-drb@ccmp.vtda.org

113 participants
93 discussions

Funky electronics chain Fry’s is no more (Seattle Times)

by decguy＠songdog.eskimo.com

https://www.seattletimes.com/business/funky-electronics-chain-frys-is-no-mo… So sad to see them go. There was a Fry's store close enough for me to visit occasionally. What will I do now when I actually want to examine the merchandise before I pay for it?

3 years, 10 months

Massbus - was: Re: VAX 11/750

by jnc＠mercury.lcs.mit.edu

> From: Chris Zach > technically the MASSBUS cable is just an extension of the Unibus No. For one thing, the MASSBUS has no lines for carrying memory addresses. So there is no way to even build a box that 'translates' MASSBUS to UNIBUS; the semantics ('the things you can say', basically) of the two busses are so very different. (The MASSBUS is actually two separate busses; a control bus, and a data bus. The former has 5 lines for 'register address', but that's all. While the control bus is asynchronous, the data bus is synchronous.) Noel

3 years, 10 months

SaturnCalc, Graph, and WP disks uploaded

by mark＠matlockfamily.com

Hi all! Spent some serious time this evening with the RX02 drives: I managed to download the images of the SaturnCalc 3.0, Saturn Graph, and Saturn WP software to RX02 images. I think it's set right, can someone take a look at the images and see if they are good? Should be RT11 format, RX02 (of course), I recorded from both sides of the disks (they're double sided, hole punched by the vendor) and are at https://www.crystel.com/bob You should see the disks and the meta files. Let me know if they work, I need to get to bed. Either burn them on real RX02's or read them with a SIMH image. C Chris, I am very interested in Saturn Calc for PDP-11s specifically for RSX. I downloaded your floppies and will take a look at them soon. You mention that they are in RT-11 format. Do you know which PDP-11 OS the Saturn software was for. They had versions also for RT-11, TSX and RSTS. Later they had native VMS and MSDOS versions. There are images of RX50s for RSX Saturn Calc, Graph and WPS at Malcolm?s web site. https://avitech.com.au/?page_id=2570 <https://avitech.com.au/?page_id=2570> He also gave me some documentation that I have scanned and put up at http://www.rsx11m.com/SaturnInstall.pdf <http://www.rsx11m.com/SaturnInstall.pdf> http://www.rsx11m.com/SaturnCalc.pdf <http://www.rsx11m.com/SaturnCalc.pdf> http://www.rsx11m.com/SaturnCalcRef.pdf <http://www.rsx11m.com/SaturnCalcRef.pdf> Saturn products on the PDP-11 and VMS used their own license key systems. I do have valid licenses for Calc and Graph for VMS and have them running on a MV3100-80. It would be great to get the RSX version running. I used it extensively back in the day and it would be wonderful to preserve it. Best, Mark Matlock

3 years, 10 months

PDP11 (Qbus) boards available

by boris＠summitclinic.com

Have been told by my wife that PDP-11 stuff not coming along with us when we're moving and so time to get it off to a good home. All of it is QBus and material in first batch is what I've got at home and will try to get pictures of another 2 systems in storage locker this week. Locker contains 2 QBus systems, one is a small system with about 64 Kb of RAM and other is larger, also a Qbus system. I powered them up when I got them but that was close to 30 years ago so power supplies will need to be checked out first. Also have a small 4 slot Qbus card cage H9281 which has a DRV11 board in it (photo not shown). Pictures, in order, are 4 channel 12 bit D/A converter, unknown QBus board, programmable real time clock, what I thought was manual for DataTranslation A/D converter but not, A/D converter, have no idea what Dilog board is, box of DEC cables, a few manuals, MINC manuals, 11/23 together with I suspect is a DRV11, not sure what board with bus extensions on top is, bus extender, blank 2 slot board and another board which was part of a parallel interface between MINC and 11/34. Would preferably like to get rid of everything at once. Haven't looked at cost of shipping out of Canada. Alternatively, send me an email off list is you want to pick it up in person. I live in Kamloops, BC. Photographs can be found at: http://drgimbarzevsky.com/Photo2020/PDP11/20210223_photos/PDP11_index.html Boris Gimbarzevsky

3 years, 10 months

SaturnCalc, Graph, and WP disks uploaded

by cz＠alembic.crystel.com

3 years, 10 months

Keys for startech 25U server rack

by cctalk＠gtaylor.tnetconsulting.net

On 2/23/21 7:43 AM, Joshua Rice wrote: > Deviant Ollam on Youtube does some fantastic lectures/videos on physical > security, and makes it horrifyingly clear how pointless locks and > physical security often is. Locks, of any type, only keep honest people honest. Actually stopping would be bad actors is an entirely different problem. To whit, many locks / enclosures are simply tamper evidence tags. -- Grant. . . . unix || die

3 years, 10 months

: Re: MSI 6800 EPROM Software

by frank＠tuccio.net

Message: 5 Date: Mon, 22 Feb 2021 21:45:24 -0600 From: Jon Elson <elson at pico-systems.com> To: Brad H <unclefalter at yahoo.ca>, General at ezwind.net, Discussion at ezwind.net:On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: Re: MSI 6800 EPROM Software Message-ID: <60347A54.5070803 at pico-systems.com> Content-Type: text/plain; charset=UTF-8; format=flowed On 02/22/2021 01:31 PM, Brad H via cctalk wrote: > Hi there, > > A longshot I'm sure - but I am wondering if anyone familiar with MSI (Midwest Scentific - SS50 bus system) would happen to have a copy of the software for their 1702A EPROM burner, I think the model is PR-1. I just picked one up and am eager to see if I can use it to read/burn 1702As, something that has been an issue for me for a while now. > > Reading them is pretty easy. BURNING them is crazy. They need an 80 V power supply, and I think you XOR the address or something as you apply the programming voltage. Jon Actually, programming a 1702 only requires a -48 volt pulse for each address. Here's the datasheet: https://www.jmargolin.com/patents/1702a.pdf

3 years, 10 months

Intel Developers' Insight CD-ROM collection archived anywhere?

by glen.slick＠gmail.com

Does anyone have a collection of Intel Developers' Insight CD-ROMs in physical form or as images? The only physical CD-ROMs I have are a two disk set from February 1998. I don't know what time period these were available. Maybe mid or late 1990s to early 2000s? They have a variety of information on them such as datasheets and manuals that might not always be easy to find online anywhere anymore. As one example of something that I was recently unable to find online anywhere is a copy of either of these, which might have been available on some of the Intel Developers' Insight CD-ROMs: 297372 16-Mbit Flash Product Family User?s Manual 297508 FLASHBuilder Design Resource Tool Those are mentioned in various Intel flash memory datasheets and databooks from around the 1995 timeframe. The February 1998 CD-ROMs contain a copy of the Intel Flash SOFTWAREBuilder, which appears to be related to but different from the FLASHBuilder tool.

3 years, 10 months

Keys for startech 25U server rack

by cclist＠sydex.com

I dropped by the local e-waste recycler and picked up a Startech 25U server rack for $100. (This one: https://cdn.cnetcontent.com/75/26/75261816-2cf3-43e9-a0b3-1e63752d781e.pdf). Heavy bugger, complete with glass door. I was as surprised as the guy who helped me load it to find that it barely fit in a Gen2 Prius (I left the truck at home). It came with an HP EO4500 PDU, with all 4 power strips (I have no use for this, so if you do, drop me a line. Maybe we can work out something). They also tossed in all of the bags of unused parts. But--no keys! Do all Startech Duraracks use the same key? Anyone know? --Chuck

3 years, 10 months

MSI 6800 EPROM Software

by unclefalter＠yahoo.ca

Hi there, A longshot I'm sure - but I am wondering if anyone familiar with MSI (Midwest Scentific - SS50 bus system) would happen to have a copy of the software for their 1702A EPROM burner, I think the model is PR-1. I just picked one up and am eager to see if I can use it to read/burn 1702As, something that has been an issue for me for a while now. Many thanks, Brad

3 years, 10 months

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test-drb February 2021