test-drb

test-drb@ccmp.vtda.org

101090 discussions

by billdegnan＠gmail.com

Reading docs on DEC TU10 for pdp 11 one makes a serial connection, right? Not sure because I found little about baud, etc. I did not see any definitive controller card for UNIBUS pdp 11. Maybe I am missing something..can anyone share experiences? Bill Degnan twitter: billdeg vintagecomputer.net

10 years, 9 months

PDP-8 diagnostics SR settings?

by charlesmorris800＠centurytel.net

Looks like I spoke too soon. The dreaded RL8A failure has returned! I made a new OS/8 RL02 pack on vtserver (took the expected three hours at 9600 baud console speed). Booted up the 8/A, so far so good. But then Drive 0 faulted and OS/8 crashed... restarted and it crashed a few seconds later again. I flexed the middle of the RL8A upwards and the system worked. For a while. Then it crashed and wouldn't reboot. Back to where I was earlier in the week - won't even allow SerialDisk to boot if the RL8A is in the backplane. OS/8 on the SerialDisk virtual RK05 works flawlessly if the card is removed. Obviously there is still an intermittent which has come back. Maybe there's a tiny thread of something conductive stuck under one of the IC's and I managed to temporarily clear it as I described. Anyhow I am resuming my search for a good RL8A. I have wasted enough man-hours on this flaky board. thanks Charles

10 years, 9 months

Tu10 pdp11

by jnc＠mercury.lcs.mit.edu

> From william degnan > I was looking to see if references to the tm11 were "module/card" or > backplane interface. I think pretty much all that earliest generation of UNIBUS interfaces were stand-alone backplanes (i.e. 19" wide things that went in an H960 in a fixed location, and were filled with the small Flip Chip modules); the RK11-C, RP11-C, RF11, and TC11 all are. > I surprisingly found little commentary or threads about the TU10 / > TM11, other than DEC docs. I guess these are not super common Yeah, I think they were the first PDP-11 tape drives - not as rare as RF11's now, but pretty rare. Noel

10 years, 9 months

Control Data 160 Ebay

by jnc＠mercury.lcs.mit.edu

> From: Jay Jaeger > I would not be terribly surprised if that auction result flushed out > one or two more. Well, auctions like this are hopefully getting the word out that many of these old computers are worth a lot more than scrap value. Yes, it will cause some people to ask unrealistic amounts for them, but better that than the other way: someone's who's asking too much can always come down to reasonability, but someone who's scrapped a machine, well, it's gone forever... Noel

10 years, 9 months

Schematics KDJ11-A / M8192?

by jnc＠mercury.lcs.mit.edu

> From: Holm Tiffe >> Not reading the list much, are we? :-) > Huh? Have I missed something in the near past? That would be the implication, yes... :-) But yes, you're in luck. I'm scanning them as we speak. Noel

10 years, 9 months

8 inch floppies-Wang, TRS80, Peachtree, perfect software, much more. Some 8 inch drives also.

by useddec＠gmail.com

If interested, please contact me off list. Thanks, Paul

10 years, 9 months

Burroughs A 584 card reader available

by useddec＠gmail.com

If you are interested, contact me off list.

10 years, 9 months

George!

by evan＠snarc.net

Here's a new picture of "George" -- aka the Philbrick analog computer that MARCH rescued two months ago. It was used at M.I.T. from 1958-1970. http://snarc.net/george.jpg

10 years, 9 months

Tu10 pdp11

by jnc＠mercury.lcs.mit.edu

> From: David Gesswein > I have a working one on an 8. It took a lot of work to get it to that > state. > > http://www.pdp8online.com/tu10/tu10-repair.shtml Wow. That is a really awesome repair job you did there. My hat is off... Noel

10 years, 9 months

Possible road trip....Illnois, Canada, Maine and back

by useddec＠gmail.com

I'm looking into a road trip from Champaign to Maine via Indy, Detroit, Windsor, Niagra Falls, Buffalo or 1000 Islands, Syracuse to Boston area, and up to Maine. Not sure about the return Route. I'll be leaving late Sep or early Oct. I have talked to a few list members about dropping off/picking up items. If anyone wishes to buy/ sell/ trade along the route, please contact me off list. I have a good size minivan and am trying to keep things down to a BA11-K or FL02 size, but that can change.I do have a few 42 inch cabs with q-bus boxes i could part with. I have a lot of 8A, 8E, qbus, unibus, VAX, boxes and parts, and LAXX, VTxx and VR units and parts. Thanks, Paul

10 years, 9 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb