test-drb April 2017

test-drb@ccmp.vtda.org

169 participants
185 discussions

by COURYHOUSE＠aol.com

In a message dated 4/25/2017 10:24:42 P.M. US Mountain Standard Time, cctalk at classiccmp.org writes: On 4/25/17, 7:28 PM, "cctalk on behalf of Jim Brain via cctalk" <cctalk-bounces at classiccmp.org on behalf of cctalk at classiccmp.org> wrote: >Been trying to Google things, but not having a lot of luck. I >understand both are white case, both have slimline drives, 12 had no >card cage, I think I read somewhere that the 16 came with 68K std (no >Z80?), and 12 had KB conn on case, 16B had KB conn on KB. Beyond that, >though, would love more information. > >Lots of info on 2 and 6000, but not so much on the intermediate machines. > >Jim > > > Some 12?s came with the card cage in it, it depended on luck mostly. So what I never really looked at closely and warehoused could be 12 or 16... I know not an model 2 as it was not silver like the trs-80 model 1 in the collected here on display. Ed#

7 years

Ford-Higgins Powerframe QBUS Docs

by silent700＠gmail.com

I have scanned the manuals that came with my Ford-Higgins Powerframe machine. It is a QBUS PDP-11/73 machine in what looks a whole lot like a DEC BA23 enclosure. Not sure if it's a clone or a licensed rebadge. The CPU board is DEC, the memory is a Clearpoint P/N 3325/300 (size unknown) and the disk controller is a Dilog DQ215 P/N 33214701 (SMD?). It has a combo fixed-disk/cart drive that their docs call an RC40. That looks like a DEC part # but doesn't seem to be anything they made. There's very little out there about them (I found a 1992 Usenet post >from someone asking "what is this thing??") so I wanted to fast-track these docs online. http://chiclassiccomp.org/docs/index.php?dir=%2Fcomputing/FordHiggins And some photos: https://goo.gl/photos/DiXaiiMKXNorGqzVA The machine has been given to a friend in search of a QBUS project, so I don't have any more pics at the moment. -j

7 years

Current catalog of items for sale

by sellam.ismail＠gmail.com

Here is a master list of the items I currently have listed for sale (asking price in parenthesis). Please inquire directly to me via e-mail for more information. Fulcrum IMSAI 8080 clone system ($1,200) http://www.vcfed.org/forum/showthread.php?51883-Fulcrum-IMSAI-8080-clone-sy… Commodore PET 8032 Brand New in Original Box w/manuals and accessories ($250) http://www.vcfed.org/forum/showthread.php?55679-Commodore-PET-8032-Brand-Ne… Computer & Electronics Magazines: Byte, Creative Computing, Pop. Electronics, More... http://www.vcfed.org/forum/showthread.php?56035-Computer-amp-Electronics-Ma… Franklin ACE 100 ($650) http://www.vcfed.org/forum/showthread.php?56187-Franklin-ACE-100&p=447060&h… SouthWest Technical Products Corporation (SWTPC) 6800 ($950) http://www.vcfed.org/forum/showthread.php?56190-SouthWest-Technical-Product… Ampro Little Board/P5x and chassis ($350) http://www.vcfed.org/forum/showthread.php?56809-Ampro-Little-Board-P5x-and-… Documation D150 punched card reader ($100) http://www.vcfed.org/forum/showthread.php?56810-Documation-D150-punched-car… Microsoft Windows 1.0 in original retail packaging, complete ($600) http://www.vcfed.org/forum/showthread.php?56814-Microsoft-Windows-1-0-in-or… STM Pied Piper Portable Computer ($250) http://www.vcfed.org/forum/showthread.php?56872-STM-Pied-Piper-Portable-Com… Apple //c Prototype ($5,000) http://www.vcfed.org/forum/showthread.php?55676-Apple-c-Prototype-for-sale&… Sphere 1 - earliest(?) Personal Computer with integrated keyboard and display ($8,000) http://www.vcfed.org/forum/showthread.php?55677-Sphere-1-early-Personal-Com… Unicom 141p - First commercial product with Intel 4004 microprocessor ($7,500) http://www.vcfed.org/forum/showthread.php?55678-Unicom-141p-First-commercia… All prices are negotiable. I'm listing new items weekly and post them to the Vintage Computer Federation Forum. Feel free to inquire directly about specific items I may have, including hardware, software, documentation, books, magazines, etc. Thanks! Sellam

7 years

SWP ATR8000 CP/M Co-processor and Percom Data AT-88 Disk Drive for Atari 8-bit

by sellam.ismail＠gmail.com

I am selling a ATR8000 and Percom Data AT-88 disk drive for Atari 8-bit systems. Please see full details here: http://www.vcfed.org/forum/showthread.php?57382-SWP-ATR8000-and-PerCom-Data… Thanks! Sellam

7 years

Remex Tape Reader - Pre-power up advice?

by anders.k.nelson＠gmail.com

Hi guys, I recently impulse-bought a paper tape reader from eBay, a Remex RRS6500BE1/660/DRB/U901 Link: http://www.ebay.com/itm/292050475397 Pictures: https://goo.gl/photos/Wa3W7mtTwwuTczUV7 It has several enormous capacitors in it and I want to do my due diligence before powering it up. Does anyone have advice in this regard? I'm competent in soldering and rework of all sorts but definitely more in digital than analog. Also the spindles squeak very slightly - are they oilable? In general it looks to be in pristine condition; no dust and no magic-smoke smell. The only repair item I can find is a sticking tape roller and gentle bending oughta solve that. I await your thoughts! -- Anders Nelson +1 (517) 775-6129 www.erogear.com

7 years

Bitsavers size

by tshoppa＠wmata.com

Ben asks: > Just how big is the server? > As a wish list, I've always wanted that as a offline set of DVD's for the common stuff. The bitsavers archive is 267 Gbytes. So at 4.7G per DVD, it comes out to almost 60 DVD's. I remember a PDQ Bach radio quiz show where the prize was The Wagner Ring Cycle on convenient 45 RPM records. Tim N3QE

7 years

What would cause a regular pattern of bad sectors?

by terry＠webweavers.co.nz

Hi guys, Ive been extracting data off a 3.5 inch windows XP-formatted floppy disk with many bad sectors. The odd thing is it's always the same bad sectors on every track. Such a 3, 8, 12 and 17. Once or twice it might be just 3, 8 and 17. Or occasionally 3, 8, 9 12, 17. This patten is the same for every track. It's (more or less) always the same sectors that are bad. Why? I can't believe natural degredation would be so consistent. Anyone have any thoughts? Terry (tez)

7 years

Tektronix 8560 floppies

by chris＠groessler.org

Hi, I've imaged (with ImageDisk) some floppies I've got with my "new" 8560 system. You can find them at ftp://ftp.groessler.org/pub/chris/tektronix/8560/diskimages . Among other things there are cross-assemblers for 68000, 6809, and 6800. From the TNIX installation disk set one is missing (disk 5 of 5). I'm looking for the Z8000 cross-assembler for TNIX. Does anyone have it? regards, chris

7 years

Genuine KM11 board (and plea for RX01 Front Bezel)

by rickb＠bensene.com

Tony D. wrote: > Are any DEC enthusiasts here jealous of this : >https://www.flickr.com/photos/tony_duell/33427116663/in/dateposted-public/ Interesting coincidence. I was digging through some boxes of stuff yesterday, and I came across two sets of these in really nice condition. Haven't tested 'em yet (had /no/ idea that they could be used for diagnosis of an RX01 control board) but looks like they should be pretty simple to check out. I had didn't know of the existence of these before yesterday. I did a little searching and found that they are useful for debugging 11/35 and 11/40 systems, as well as RK05 drives...but didn't see anything about the RX01 drive electronics. Speaking of RX01's, does anyone out there have a spare front bezel for the RX01 that they'd be willing to part with? I have a working RX01 on my 8/e system (both drives good, amazingly) but the bezel was missing when I got it. It'd be nice to have, as it looks rather dumpy in the rack with the rest of the system. Best wishes to all, -Rick -- Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com Beavercreek, Oregon USA

7 years

Genuine KM11 board

by jnc＠mercury.lcs.mit.edu

> From: Tony Duell > Are any DEC enthusiasts here jealous of this Actually, not me! I'm an old enough campaigner that I recall when real light bulbs were standard, and they were a total PITA! So when LED's arrived, we all though they were the greatest thing since sliced bread. So I'm now very happy with my LED-equipped KM11 clones - I still have that anti-bulb bias! :-) Noel

7 years

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test-drb April 2017