test-drb

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101090 discussions

by pontus＠update.uu.se

Hi all. In order to make room for an 11/44 I'm giving away a PDP-11/23 with two RL01 drives. I have a bunch of spare Q-BUS cards for the 11/23 and I wonder if any of them are compatible with the 11/73. You see, I just got an 11/73 which is quite empty (a CPU and some memory) and I don't want to give away something that's useful in the 11/73. So, here is what I got for the 11/23: Memory: M7506, M8043, M8044, M8047, M8059, M8067 Peripherals: M7513 RQDXE RQDX extender for RQDX2/3 M7941 DRV11 16-bit parallel line unit M7954 IBV11 IEC general purpose M7957 DZV11-M 4-line double-buffered async EAI MUX M8013 RLV11 RL01/RL02 disk control 18-bit M8014 RLV11 M8027 LPV11 Printer interface module M8061 RLV12 RL01/RL02 disk control Other: M9401 Bus extender? M9400-YB Terminator (11/03) M7942 MRV11-AA Space for 4K 16-bit PROM M7952 KWV11 Programmable realtime clock If I've understood the matter correctly the 11/73 can utilize 22 bits of the Q-BUS but the 11/23 only 18 bits and that means that some cards are 18 bit only and others 22 bit only. I think I will hang on to the RLV12 and RQDXE, anything else? It would be great if the memory was compatible. Thanks in advance, Pontus.

15 years, 5 months

Bringing tapes to Room Temp?

by healyzh＠aracnet.com

I'm getting ready to test out my 9-Track tape drive before hauling it into work for some data recovery. I have a box of brand new tapes, which unfortunately haven't been stored under ideal conditions for most of their life (they're probably about 20 years old). Currently they're in the garage, which at the moment is close to freezing. How should I go about bringing the tapes to room temp? The main 4 tapes to be read have been stored under proper conditions for most of their life. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ |

15 years, 5 months

Happy New Decade

by ard＠p850ug1.demon.co.uk

Happy new decade to all members of this list and their families. [Yes, I do start counting from 0 normally. But the calendar doesn't :-(, and thus I think that new centrieies, decades, etc start with years ending in '1'.] -tony

15 years, 5 months

Wanted - 44 Pin expansion cards for Cosmac Elf

by nick.allen＠comcast.net

Hey everyone, does anyone have any of the 44-pin expansion cards for the Cosmac Elf? I am looking for a video board, disk controller, or keyboard interface specifically. Or even some blank prototype style boards would be helpful. Thanks! Nick

15 years, 5 months

Anybody ever notice this website for old computer advertisements?

by teoz＠neo.rr.com

http://www.vintageadbrowser.com/computers-and-software-ads-1980s/15 I was googling for and old computer and stumbled onto this place.

15 years, 5 months

8-BIT OPL2 Sound board community project

by lynchaj＠yahoo.com

Hi! There is a community project to make an 8-bit OPL2 sound board. http://www.vintage-computer.com/vcforum/showthread.php?23271-8-BIT-OPL2-Soun d-board http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder <http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=OPL2> &param=OPL2 The board is designed already and ready to go to prototype board build and test. The board supports the YM3812 and YM2151 synth chips and the YM3012 and related DACs. There are some interested builders working on the design at vintage-computer.com forums. To order prototype PCBs I need 5 builders to order prototype boards at $30 so we can get some initial hardware for build and test. There will be software for this board to allow OPL2 programming. The board *may* provide some compatibility for legacy PC gaming. If you are interested in participating please contact me by email LYNCHAJ at YAHOO.COM with OPL2 in the subject. Thanks and have a nice day! Andrew Lynch

15 years, 5 months

VCF East 7.0

by evan＠snarc.net

Hi all -- Now that it's 2011, I just wanted to remind everyone about VCF East 7.0. It's scheduled for May 14-15 at our usual location -- the InfoAge Science Center, in Wall, New Jersey. Typically most of our exhibitors are from the Mid-Atlantic and Northeast parts of the USA. However last year some exhibitors arrived from farther away -- Mike Lee (Chicago), Vince Briel (Cleveland), and even Robert Bernardo (northern California) -- so the rest of you are running out of excuses distance-wise. :) At some of the past VCF East shows we also had visitors from Missouri, Texas, and California, and from Canada, Germany, Italy, and New Zealand. We're still in the beginning stages of getting keynote speakers and such, so no big announcements yet. But .... a little binary birdie says Forrest Mims may give a talk, and there's a chance (slim, but not out of the realm of possibility) that someone may accept my invitation whose famous three-letter nickname once spelled the first letters of the words in a company called "Wheels Of Zeus". ;) So: right now we're waiting for Sellam to finish the registration page. In the meantime, please start thinking about attending our event. The previous VCF East was our biggest one ever, and we intend to out-do ourselves this year. - Evan

15 years, 5 months

Happy New Decade (Tony Duell)

by jonas＠otter.se

Arguing about this is about as daft as arguing about whether array indices should be zero-based or one-based. It is a fact that some languages use 0 as the index origin, others 1. It is also a fact that a century or decade starts on the year ending with the digit 1, not 0, since there never was a year 0. Possibly not logical, but nonetheless a fact. Claiming anything else is plain wrong, just as claiming that the sun rotates around the earth is wrong, even though it looks that way from the earth. And arguing about it is completely pointless. The concept may be hard to grasp for mathematically challenged persons who think that celebrating the start of a new millennium in 2000 is a good marketing move, but they are still wrong. All the problems with non-year-2000-capable software confuse the issue but the facts still stand. So happy new decade to all! /Jonas

15 years, 5 months

C64/C128 CP/M Cartridge Interest?

by brain＠jbrain.com

Would anyone on the list with CP/M or Z80 experience be interested in helping design a CP/M cart for the C64 and C128? I'd like to learn more about CP/M and the Z80, and I thought a revamped cartridge might be a nice way of learning and tying back to my CBM bias. Jim

15 years, 5 months

Source for OKI clock chip?

by snhirsch＠gmail.com

I'm trying to find a source for an OKI MSM6242 RTC chip (18-pin DIP package). As usual, all my Google searches turn up dozens and dozens of sleazy-looking "we can get you anything, submit an RFQ.." sites. This is the chip used in Amiga 2000s. I'm not sure if there are any workable cross-references. Steve --

15 years, 5 months

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