Sorry this post isn't about whether something is regarded as classic or not.
I am almost done putting together a little 4-card Qbus machine using a H9281-BA card frame. Eschewing a piece of plywood, the frame, power supply, fans,
Heeltoe POR board are all mounted on a clear acrylic A4-sized office 'In Tray' I picked up at a recycling centre. Hence I've named it PERSPEX-11 :)
So..
For a DLV11 EIA serial connection, I am about to wire up a fly lead cable to go from an M7940 SLU (no dash version) 40-pin header to a DB25P.
After finding the pinout on page 178 in the 1980 Interfaces Handbook, on header J1 I know only need the usual basic RS232 setup:
J - Received Data
F - Transmitted Data
B - Signal Ground
M to E loopback
I have a blank 40-pin header shell and a pile of DuPont leads of all colours ready to slot into their respective locations in the header. I could use
any colours but I'd really like to use the original colours for the above wires.
So, the only wire colour reference in the handbook is for a J1 and J2 header DRV11 pinout on page 275. Pin B is Black, and Transmit is Red but Pin J
Receive is marked as Orange/Ground, for that device. Also M and E don't have their colours specified for the loopback wire.
I've also looked at the Gunkies 'DEC asynchronous serial line pinout' page which has the pinout but it doesn't mention the original wire colours sadly.
Could someone point me to what colours the M7940 cable should be?
Thanks for any help,
Steve.
I think my original message didn't go through (forgot to select plain text instead of html.) If it did I apologize for spamming the list.
I'm clearing out some clutter so I can get to some more clutter to clear it out. Much of my clutter is classic computer related (at least by my definition.) But it needs to go.
I have an assortment of old dynamic RAM chips:
1M x 1 approx 35
256K x 4 approx 40 to 50
256K x 1 approx 80 to 100
They are various speeds, mostly between 100ns and 150 ns
If anyone wants them, let me know. You pay shipping. Otherwise they go to the landfill.
You can contact me off-list.
Will
I do not think you can name many great inventions that have been made by married men. Nikola Tesla
i have a VT100 that is working fine (powers on, navigates setup,
saves/restores settings, etc) but has an unpleasant burning/ozone odor
coming from the rear of it. i suspect something is running hot but i am not
sure what, i do not currently have an IR camera in my hands- working on
that. the original power supply has failed and is currently in storage, so
the terminal is being powered by an ATX power supply and adapter board for
the time being. this eliminates the usual R27 as being the culprit.
as best i can tell, the smell is strongest just above the power
distribution board, around the neck of the CRT. appreciate any suggestions
you might have!
This beast was given to me by a neighbor. Dual socket 604. Windows 2003 in some RAID configuration. I understand (or used to understand) RAID levels somewhat. But iinm he tells me the OS is "split" over 6 scsi drives. Not getting this, but I don't need all the redundancy/striping. I want it all on 1 drive. What to use to image what comstitutes 1 volume I guess. Norton Ghost? I have an extra scsi drive, I can always restore the image to the 1 drive (yes?), before or without alterimg the currently embedded stack.
This thing is heavy. I secured a copy of the Corel Linux Starter Kit and want to load it into the Poweredge. For chips and pringles. I have other pre uefi boxes around but this is lying dormant. And 6 drives for my purposes is stupid. And heavy.
Specifically as pertaining to old/vintage/classic/retro compuing discussion, what exactly is on topic? On top of my head as a for imstance I have some questions pertaining to Windows 2003 and socket 603/604. Something tells me that doesn't qualify, so it behooves me to ask.
My PRO 380 runs Venix/PRO. Which is cool, but someone sent me this:
https://www.frijid.net/blog/index.php/2015/06/07/182/
Allegedly this gets BSD 2.9 on, at least, the PRO 350. I'm particularly
interested because it supports networking. Anyone tried this on their PRO? Or
better still, an actual 380?
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser(a)floodgap.com
-- Male Macintosh geeks are so predictable. All we think about is X. ----------
Great article on SCAMP - thanks for posting the link!
-W
Date: Sat, 17 Dec 2022 17:50:46 -0600
From: Steve Lewis <lewissa78(a)gmail.com>
Subject: [cctalk] pc magazine Nov 1983
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Message-ID:
<CACG-qZzseNpof-zyRfomOgisB=3zf+BN6BhSrATbWA_SvoVN7g(a)mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Does anyone have a November 1983 issue of PC Magazine?
I did find one on eBay, but it apparently got lost in transit during recent storms.
That issue has been digitally archived
https://urldefense.com/v3/__https://archive.org/details/PC-Mag-1983-11/__;!…
But I was hoping to come across a physical copy.
Thanks!
Hi folk,
I am still looking for a DQ696 to allow me to get ESDI drives going on
both my microVAX and 11/73 since the Webster RQD11 controller failed I
only have the one. I'd also like to get old of an RQDX3 since I built a
Gesswein emulator and have nothing to test it with :-)
Any help appreciated,
Nigel
--
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591
Was wondering if anyone had one of these and/or maybe had the software
floppy kicking around? It's an ISA card with a Z80 + RAM to shove into an
ISA slot for CP/M compatibility. Of course, information's sparse online and
forget software.
Here's a picture of said card, https://i.imgur.com/eJh2on5.jpg .
-Chris
