test-drb May 2017

test-drb@ccmp.vtda.org

160 participants
179 discussions

by bill.gunshannon＠hotmail.com

We have any people here with an interest in the UnixPC? I have one left here that I probably need to part with. It's a little dirty having spent 20-some years in an attic but I just powered it up and it works other than the hard disk. It's got 1Meg on the motherboard and no external cards. It boots diagnostics from the floppy but won't boot from the hard disk and when I run diagnostics it gets read errors. I guess that means it might be good and just require a re-initialization and reload of the software. It's way to much for me to try to ship so it would need to be someone either near Scranton, PA or who might be travelling this way at some point this summer (but not the end of May/beginning of June as I will be in Alaska then.) It can be had for a couple cases of beer. :-) I also think I have a set of both 2.0 and 3.? floppies which would make reloading it easier. bill

7 years, 8 months

rainbow parts

by useddec＠gmail.com

Hi Steven, Did you see my post on Rainbow parts? Paul

7 years, 8 months

Philips Training Manual Introduction to Magnetic Disk Drives

by fjkraan＠xs4all.nl

Hi All, For all who missed the 1980's technical details of diskdrives or lost the details in the mean time, I just put the "Training Manual Introduction to Magnetic Disk Drives" online which Philips provided in 1987 as part of a Field Training. The rest of the documentation are technical manuals of disk drives like the Shugart SA455/456, SA400L, SA800/801 and CDC 9406. Assuming those are available, so I won't scan them This manual covers floppy drives and hard disks, the latter with ST506 and SMD interfaces. http://electrickery.xs4all.nl/comp/divcomp/doc/TM_AItMDD.pdf http://electrickery.hosting.philpem.me.uk/comp/divcomp/doc/TM_AItMDD.pdf Enjoy & greetings, Fred Jan

7 years, 8 months

HP 07970-60580 tape head assy

by useddec＠gmail.com

>From a 7970-E? please contact me off list with questions and offers. Shipping $10 within US. Thanks, Paul

7 years, 8 months

Displaywriter disks

by aek＠bitsavers.org

I got lucky, and this ebay lot http://www.ebay.com/itm/382069259067 contained single density copies of textpack 4, four copies of textpack 6, chart pack, report pack, bisync, async, and the training disks images under http://bitsavers.org/bits/IBM/Displaywriter -- these are very difficult to find

7 years, 8 months

Complete IBM PCjr system for sale

by sellam.ismail＠gmail.com

I have a complete/working IBM PCjr system for sale. It includes monitor, manuals and software, all in excellent condition. Details are here: http://www.vcfed.org/forum/showthread.php?57574-IBM-PCjr-with-both-regular-… Thanks! Sellam

7 years, 8 months

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

by terry＠webweavers.co.nz

>And yet, if there were an RX02 somewhere on this VAX, I don't believe you'd be able to read them at all... RX02 seeming more likely with a VAX. Interestingly PUTR, does seem to accommodate this, and the kind of system I have set up (i.e. 1.2 MB 5.25 inch in CMOS even though it's an 8 inch drive). From the readme file... "SET x: type Sets the drive type for one of the four possible PC floppy drives A:-D: (note that actual PCs rarely have more than one or two floppy drives). The type must be RX01, RX02, RX03, RX50, RX33, RX24, RX23, or RX26. The default value for each drive is whatever was stored in CMOS memory by the ROM BIOS setup utility. This command may be useful when the drive types stored in CMOS RAM are incorrect for some reason. It's also helpful when an 8" drive, or a real DEC RX50 drive, has been attached to the PC using a D Bit "FDADAP" adapter, or something equivalent. There is no standard for representing these drive types in CMOS RAM. Using real RX50 drives (or other 300 RPM quad-density drives such as the Tandon TM100-3 and TM100-4) is different from RX33s (which is what PUTR calls regular PC 1.2 MB drives) because the motor speed is slower, so the FDC chip must be programmed for a lower data rate to match." I didn't spend too much time on PUTR as it seemed to be more for the older DEC OSs rather than Vax VMS. VMS wasn't mentioned as an option in PUTR which is why I spent more time experimenting with ODS2, which was VAX specific. And...as I said, PUTR tries to figure out what DEC OS (if any) is on the disk and failed to find one. Maybe I should play around with the switches in PUTR more before I give up though.... Terry

7 years, 8 months

Beautifully-posed photos of various kinds of retro kit

by COURYHOUSE＠aol.com

Nice work Liam! great to see things displayed in a 'setting' rather than just computers on shelves! KUDOS! Ed# In a message dated 5/3/2017 4:52:30 A.M. US Mountain Standard Time, cctalk at classiccmp.org writes: >From the Apple ][ up to PowerMac G4s. So, possibly a bit new for many of you folk, but I enjoyed them and thought others might too. http://podstawczynski.com/retro/beauty_shots.html -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? Google Mail/Talk/Plus: lproven at gmail.com Twitter/Facebook/Flickr: lproven ? Skype/LinkedIn/AIM/Yahoo: liamproven UK: +44 7939-087884 ? ?R/WhatsApp/Telegram/Signal: +420 702 829 053

7 years, 8 months

DEC compatables

by useddec＠gmail.com

Please contact me off list with questions and offers. $10 S/H within US. Ask about overseas ABLE Quinverter DILOG DQ130 DQ686 Emulex CS09 SC01 SC03 SC21 SC31/BX TU11 TU121 TU131 UD33 hex QD01 QD21 QD241 QT131 Thanks, Paul

7 years, 8 months

DEC Rainbow, Pro 380 parts available,

by useddec＠gmail.com

I have the following Rainbow/ PRO parts for sale. I would like to sell the the mother board and everything on it. If I don't get offers for them, I might split them up. I might have more loose parts as I continue digging. No complete units with cases at this time. I'm waiting for some to arrive I bought over a year ago. Please contact me off list with any questions and offers. Shipping is from 61853, and will be $15 per PC100 mother board, overseas please ask me for rate. I plan to ship everything sold next week. UNIT 1: PC100B motherboard RX50 controller 54-15482 RD51 controller 54-16019 54-15688 8087 memory adapter 54-16535 UNIT 2 Same as unit 1 UNIT 3 PC100B motherboard RX50 controller 54-15688 UNIT 4 PC100A motherboard RX50 controller 54-15490 memory expansion, no sockets UNIT 5 and 6 PC100A motherboard RX50 interface Misc- 2 H7842 power supplies PRO items 3 PRO 380 motherboards I hope everything is correct and there are no typo.

7 years, 8 months

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test-drb May 2017