test-drb August 2002

test-drb@ccmp.vtda.org

232 participants
452 discussions

by spectre＠stockholm.ptloma.edu

While trying to benchmark Fusion PC (as a IIci) on my AMD DOS PC, I threw together a small implementation of the Sieve of Eratosthenes and Ahl's Simple Benchmark to test integer and FPU performance. Like everything else in my life, this snowballed, so here is the fruit of my labours for people who are interested in benchmarking their 68K Macintosh. http://www.floodgap.com/retrotech/mac/ahl/ The reference is a Mac Plus running 6.0.8 with 2.5MB RAM and the stock 8MHz 68000 CPU. However, to make it really vintage, I tested it against a Mac Plus running System 1.1 and it worked! 512K RAM recommended. Just to prove I have a sense of humour, the benchmark is in Modula-2. Some of the tests ran on my classic Mac stable had rather startling results. For example, the Daystar PowerCentral control panel seems to accelerate FPU performance on the IIci, even with no Daystar hardware installed. Comments? -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- For every action there is an equal and opposite criticism. -----------------

22 years, 4 months

RT-11 Memory Issues

by GOOI＠oce.nl

> The problem is that you actually have less memory available when you > run XM since it is a larger monitor. And we're talking about memory > in the critical area of the low 56kb. If VGBEXE is no solution to run ADVENT, try using the SJ monitor. I had exactly the same problem (in E11) and lots of memory available. Booting into SingleJob was the solution for me. Didn't help much getting throught ADVENT, but that a completely different story ... happy gaming, - Henk.

22 years, 4 months

TTY spares request

by wh.sudbrink＠verizon.net

> Dan Cohoe and I both made the rounds of the TTY spares on the balcony > of the Armory in NJ (thanks again, William!) I do not recall seeing > anything of that nature amidst the bits. Spare keytops, plattens, > chad bins, springs and more, but no keyboard butterflies. Oh wow! There are chad bins there? I need one for my 33. Is anyone going back that way? Thanks!

22 years, 4 months

PDP 11/24 Wierd Unibus Setup

by cmcnabb＠4mcnabb.net

I've pretty much got this PDP-11/24 up and running, except for one confusing detail. There are some (what I consider to be) strange cards plugged into one section of the unibus. In this box, there are three seperate sections of bus. The one on the right has 9 slots, and contains the cpu, memory, dl-11, etc. The one on the left has 4 slots and contains the bus terminator, as well as the controller for the RA-80. It is joined to the right hand bus by an extension cable. The middle section of bus is the wierd one. It contains some kind of power supply cable and a bunch of single-height flip-chips. Here is the setup: 1 2 3 4 A Power B M205 M660 C M116 D M113 E M112 F Anyone have any ideas what this is for? Thanks.

22 years, 4 months

IBM 3295 Plazma Display

by xds_sigma7＠hotmail.com

To the best of my knowledge, 3290s are meant to talk to 3274s.. But I think it depends on the exact model... I hope mine are for 3274s, I wanna use 'em on the 4381. Will J _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com

22 years, 4 months

TTY spares request

by mross666＠hotmail.com

Hope someone can help - perhaps they're lying in a NJ warehouse! Been checking out my old ASR33s, a couple of them are missing the small bar (shaped like a 'double Y') which connects the keyboard mechanism to the printer. Anybody got any spares? Thanks Mike http://www.corestore.org _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx

22 years, 4 months

(fwd) FS: Various (fwd)

by jpl15＠panix.com

For possible List interest - DO NOT REPLY TO ME! Perhaps this Gentleman will be amenable to a 'reasonable' counter-offer... I dunno: FYI. Cheers John ---------- Forwarded message ---------- From: "Jeff Kilgore" <the.weight(a)verizon.net> Newsgroups: rec.radio.swap,rec.radio.amateur.equipment Subject: FS: Various [much snippage of OT radio gear] Hewlett-Packard HP41CX calculator, with magnetic card reader, Advantage module, original manuals and boxes, and several additional books on the HP41. $275 shipped All items will be carefully packaged. Payment by USPS money order, PayPal, or personal check (personal checks must clear before shipping). 73, Jeff Kilgore, KC1MK -- end of forwarded message --

22 years, 4 months

TTY spares request

by dwightk.elvey＠amd.com

>From: "Ethan Dicks" <erd_6502(a)yahoo.com> > >--- Mike Ross <mross666(a)hotmail.com> wrote: >> Hope someone can help - perhaps they're lying in a NJ warehouse! >> >> Been checking out my old ASR33s, a couple of them are missing the small >> bar (shaped like a 'double Y') which connects the keyboard mechanism to >> the printer. Anybody got any spares? > >Dan Cohoe and I both made the rounds of the TTY spares on the balcony >of the Armory in NJ (thanks again, William!) I do not recall seeing >anything of that nature amidst the bits. Spare keytops, plattens, >chad bins, springs and more, but no keyboard butterflies. > >It's a flat part and shouldn't be as critical on the manufacturing >tolerances as parts in the printer carriage - if you have one, it >should be possible to make duplicates. If you don't have any, someone >could throw one on a flatbed scanner... You might even be able to get >away with a plastic replacement - wouldn't be as durable (months/years >instead of years/decades), but you could make a stack of them. Hi The piece has to transmit quit a bit of torque to reset the keyboard. I'm not sure if a piece of plastic could handle it. One could carve it out of a piece of cold rolled steel using a dremel tool. It has a slot in the center to make it easy to remove and install with a screw driver but this part isn't needed. The rest is just cutting around the edges. I don't have a scanner so maybe someone else can make a picture. Dwight > >If you have any friends who are train buffs, especially those who make >their own engines/cars from raw materials rather than kits, they should >have the necessary tools/skills to copy a 1"x2" flat piece of metal >with a few notches and curvy bits. > >-ethan > > > > >__________________________________________________ >Do You Yahoo!? >HotJobs - Search Thousands of New Jobs >http://www.hotjobs.com >

22 years, 4 months

Documentation for DEC T-11 evaluation board?

by Antonio.Carlini＠riverstonenet.com

>I'd like to find the schematics for the DCT11-EM board (or even >better, a board based on the J-11). I have a scan of EK-SBC02-UG-001 and it has schematics (and ROM and FPLA listings) for that system. IIRC it is T-11 based. That should eventually appear at the DFWCUG site. If you want it right now, I'm reasonably sure that it is a later version of http://www.spies.com/~aek/pdf/dec/pdp11/EK-KXT11-UG-PR1.pdf which you can get right now. I doubt that either of these are *exactly* what you asked for, but they may serve as a useful starting point. Antonio

22 years, 4 months

Documentation for DEC T-11 evaluation board?

by Antonio.Carlini＠riverstonenet.com

> > I just received a DEC T-11 evaluation board (part number DCT11-EM) I bought > > on eBay. Does anyone have any documentation on this? Compaq Assisted > > Services still lists the User's Manual for $142, but when I made an > > internal inquiry, I found it had been obsoleted and was no longer > > available. :-( > There are a couple of T-11 manuals at http://www.spies.com/~aek/pdf/dec/pdp11/ but I don't think either of them are for that particular system. They may provide some hints though. Antonio

22 years, 4 months

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test-drb August 2002