test-drb July 2016

test-drb@ccmp.vtda.org

190 participants
243 discussions

by billdegnan＠gmail.com

Is there a minimum memory requirement for RT-11 v5? I was discussing with Ray Fantini about it today, unsure...anyone know if 16K will work (from 000000). Bill -- @ BillDeg: Web: vintagecomputer.net Twitter: @billdeg <https://twitter.com/billdeg> Youtube: @billdeg <https://www.youtube.com/user/billdeg> Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>

9 years

Anyone have a spare PDP-11/84 serial console panel they could part with?

by glen.slick＠gmail.com

I just acquired a PDP-11/84 that didn't come with a console panel. That should have a 25-pin D-shell connector for the console serial port, a baud rate selection switch, and a forced dialog switch, with a single 20-pin connector for a ribbon cable that attaches to the KDJ11-B and MDM. The part number should be 54-16508-01 according to the manuals I have seen, although the only hits I find online have it transposed as 54-16058-01. If you have one available let me know offline in private email how much you would want for one. I'm located in the Seattle, WA area. -Glen

9 years

Anyone have a spare PDP-11/84 serial console panel they could part with?

by jnc＠mercury.lcs.mit.edu

>> a baud rate selection switch > That turns out to be purely off-board (using a clock on the card, and > the 'external clock' option on the CPU (same as the 11/23+). Ooops, my mistake - I _thought_ it was the same as the -11/23+, but now that I look, it brings the baud rate selection lines out to the daughter card. Still, you can select the baud rate without the daughter card - like I said, I have run -11/84 CPU cards in a stock (Q/CD!) QBUS box. >> a single 20-pin connector for a ribbon cable that attaches to the >> KDJ11-B and MDM. > I'd have to check to see if there's anything critical in there for > controlling the power supplies. My guess would be no, since the only things on the serial card that come through that cable from the MDM board are the baud rate and force dialog, which come from the CPU card through the MDM card. (Why on earth DEC did that, instead of just having them come directly from the CPU card, I have no earthly idea. Anyone have a guess?) Noel

9 years

Anyone have a spare PDP-11/84 serial console panel they could part with?

by jnc＠mercury.lcs.mit.edu

> From: Glen Slick glen.slick at gmail.com > a PDP-11/84 that didn't come with a console panel. You should be able to get it running without the DEC panel (I have certainly run M8190 cards in an 11/23 chassis, without the front panel); the serial connection is the same as the DLV11-J, etc, pinout here: http://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout and most of the functionality of the panel (e.g. the force dialog switch) is repeated on the CPU board as jumpers/switches. > a baud rate selection switch That turns out to be purely off-board (using a clock on the card, and the 'external clock' option on the CPU (same as the 11/23+). > a single 20-pin connector for a ribbon cable that attaches to the > KDJ11-B and MDM. This is the only part I wonder about - I'd have to check to see if there's anything critical in there for controlling the power supplies. Noel

9 years

Multiplan for the VT180

by useddec＠gmail.com

While looking for some other docs, I found a few new copies of Multiplan for the VT180, NOS. White folder, 2 books, sealed floppy. If you have any questions or interest, please contact me off list. Easy to mail from zip 61853. Paul

9 years

Reproduction micros

by swiftgriggs＠gmail.com

I'm probably dreaming, but is anyone aware of DIY efforts or business ventures aiming to reproduce a classic micro or "next-gen" classic micro? I have seen a lot of efforts, but only one quite like that (the Altair 680 project nails it). I'm just thinking that with 3D printers and FPGA hardware emulation it's probably not as hard as it once was. Here are some similar efforts I'm already aware of. Project BreadBox (dead) http://www.lemon64.com/forum/viewtopic.php?t=47834&sid=ae3e721d8d800cbe5d6b… The truly kick ass MIST. A nice clone of several systems implemented in FPGA, but design wise, it's a shabby little metal box. I have one and I think it really rocks. I just wish there were more cases and accessories. http://lotharek.pl/product.php?pid=96 The Firebee ST clone project https://en.wikipedia.org/wiki/Atari_Coldfire_Project The C64 Joystick clone https://en.wikipedia.org/wiki/C64_Direct-to-TV Commodore.net used to sell PeeCee C64 and Amiga look-a-like clones dead link: http://www.commodore.net The C-One. A FPGA board to emulate the C64, again no case. https://en.wikipedia.org/wiki/C-One The awesome Altair 680 kit that appears to be a very complete clone of the system. It comes with a case et al. http://www.altair680kit.com/ A bunch of PDP-X replicas in FPGAs with various degrees of usefulness http://www.aracnet.com/~healyzh/pdp_fpga.html These guys are trying to build a NEW Amiga with backward compatibility. Sounds like a wonderful project. They seem to be pretty far along with many prototype boards built. FPGA guts with a real 060' for CPU! They never seem to have made boards for sale, though, and there was no effort toward a complete system design (case, keyboards, etc...). The last noise they made seems to be in 2007. http://www.natami.net/ For consoles there are plenty of clones: http://segaretro.org/Unlicensed_Mega_Drive_clones https://www.amazon.com/Hyperkin-Retron-System-GENESIS-Nintendo-Entertainmen… Then there is the Cray1 remake http://www.chrisfenton.com/homebrew-cray-1a/ -Swift

9 years

GE Canada are hiring... A PDP-11 programmer

by lproven＠gmail.com

Yes, today. http://www.vcfed.org/forum/showthread.php?37827-Greetings-from-GE-Canada!&s… -- Sent from my phone - please pardon brevity & typos.

9 years

APL-100

by turing＠shaw.ca

Hi: I just recently acquired a Cybernex APL-100 APL/ASCII terminal; it appears to be complete, but the only documentation that I have for it is a sales brochure. Is there anyone familiar with this? It was manufactured in Ottawa, Ontario (Canada) in the late '70s - any technical information would be appreciated.

9 years

seeking DEC VAXmate software

by iamcamiel＠gmail.com

> Is the bulk of the computer in the monitor and the box it stands on "just" > an ISA expansion, PSU and hard disk? Yes, it's an optional expansion box. The idea behind the vaxmate was that instead of from a hard disk, it could run from a disk image on a VAX, so a local hard disk was optional. Camiel

9 years

Straight 8 up on Ebay just now

by COURYHOUSE＠aol.com

agreed. if it would have been 11/20 and a h960 would have been muccchhhh more reasonable.. what was there was totally amazing. Ed# In a message dated 7/24/2016 9:05:37 P.M. US Mountain Standard Time, jnc at mercury.lcs.mit.edu writes: > From: Glen Slick > For the curious about the eBay market value of the PDP-11/20 today That one was a once-in-a-lifetime thing, though: not only a KA11 in absolutely pristine condition, but also an additional BA11 stuffed to the gills with memory; the most complete set of original documentation I have _ever_ seen with a computer that old; a complete H960 in perfect condition, with all the blank panels, the rear door, etc; trays and trays of original paper tape software, etc, etc. When you consider that that PDP-11/70 that went a while back for $10K - and -11/70's are a lot more common that -11/20's - I think this one was easily worth what it went for. I'm quite serious - I doubt we'll ever see another -11/20 in this good a shape, and this complete, for sale, at least, not in my remaining lifetime. Noel

9 years

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test-drb July 2016