test-drb January 2002

test-drb@ccmp.vtda.org

303 participants
1201 discussions

IRIS Power Series power supply questions

by csmith＠amdocs.com

> -----Original Message----- > From: Tothwolf [mailto:tothwolf@concentric.net] > I've got three deskside single tower machines myself. If you > can wait a > few days, I'll pull the plates off of one and take a few digital pics. Please do. I certainly won't be plugging it in that soon at any rate. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 5 months

IRIS Power Series power supply questions

by csmith＠amdocs.com

> -----Original Message----- > From: pete(a)dunnington.u-net.com [mailto:pete@dunnington.u-net.com] > Yes. The reasoning is that the earth connection should > always be the first > one made and the last one broken in normal connection/disconnection. My assumption too. It seemed the sensible thing. > Yes. The live wire is always the one with the switch, > breaker and/or fuse, > unless it's a two-pole breaker (one pole for live, one for neutral) of > course. Only one of the three prongs is ever broken, so it's likely safe to assume that it's the positive one. Thanks. I feel somewhat better about it. :) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 5 months

Caster?? (was: Netscape (was Re: PayPal = payola?)

by pete＠dunnington.u-net.com

On Jan 28, 10:27, Fred Cisin (XenoSoft) wrote: > I was under the impression that casters were only for very lightweight > stuff that was intended to be movable by one person without a forklift, or > even a dolly. York had a large Sequent machine on castors. It took eight people to move it. Nine, actually. Eight to push, and one to collect up broken castors. Leeds had an Ahmdahl which had all the cabinets on castors. I have some of the castors (the only souvenir they let me keep), and they're rated for 250kg each. They're rather bigger than the ones on the Sequent :-) Our present tape backup system, which weighs the best part of a ton, is on four castors. Actually, lots of large machines, old and new, are on castors, but they tend to have jackscrews as well. -- Pete Peter Turnbull Network Manager University of York

22 years, 5 months

Bell & Howell Apple II update II

by csmith＠amdocs.com

> -----Original Message----- > From: Richard Erlacher [mailto:edick@idcomm.com] > ----- Original Message ----- > From: "Christopher Smith" <csmith(a)amdocs.com> > > The BNC connectors do, indeed, carry composite video. > Yes, they do. In fact, I just saw one carrying DC power. It > was part of an > adapter at the other side of which were two banana plugs. > Don't ask me why. Well, I've taken a guess at what you're replying to... Let me know if I'm way off. :) I was referring to these specific BNC connectors on the Apple II. It's interesting, though, that someone would use BNC to carry power. On the other hand, there are some points where the huge variety of plugs available (which carry the same signal) is ridiculous. Sometimes I think the world would be better off using, for instance, banana plugs, for everything. (Don't cross the wires! -- unless you really mean it.) Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 5 months

VT131 needs keyboard help

by pete＠dunnington.u-net.com

On Jan 28, 12:26, Christopher Smith wrote: > Another weekend project of mine has been working on a VT131 > terminal. The terminal seems to work fine when receiving data. > > The terminal always powers up with a "4" in the corner > (keyboard error?). Typing characters on the keyboard will give > no response from either the terminal, or the system to which > it's connected. The lights flash (all at once), and the speaker > beeps when power is applied to the terminal. No lights are ever > activated afterwards, though. > > Having taken apart the keyboard, it does have an empty socket for > a DIP. Anyone know what this is? I gave away my VT131 a few weeks ago so I don't know :-( > Is it possible that this is a "lookalike" keyboard? Did DEC make > different models for different VT100 terminals -- were they > compatible? If this is an authentic DEC keyboard, will it be > marked as such somewhere? If so, how? > > The key layout _looks_ like VT100, but... The keyboard is the same as that for a VT100. There are more setup options, but the only significant difference is that the sticker on the underside has more places to record them :-) My VT131 actually had a VT101 keyboard. > The reason I'm asking about the brand is that there was another > terminal at the junk yard, completely trashed, which looked like > a VT100, but had a completely different branding. I forget the > brand right off, but I'm afraid I may have picked up the keyboard > for the dead terminal, and that it may not be compatible at all. Maybe a Plessey terminal? I had two which looked just like a VT100 from the outside, but had different (Plessey-made) logic inside, and incompatible keyboards. > Failing a way to positively identify the keyboard, are there any > common modes of failure along these lines? > > Also, I'm guessing at this point that the terminal is in good shape. > Does anyone know where to get a keyboard? I vaguely remember something like a flashing "4" in the top corner of my VT131 if the keyboard wasn't connected. Maybe not exactly that, but something of the sort. -- Pete Peter Turnbull Network Manager University of York

22 years, 5 months

Netscape (was Re: PayPal = payola?)

by csmith＠amdocs.com

> -----Original Message----- > From: Matthew Sell [mailto:msell@ontimesupport.com] > Additional bonus points awarded if the only boot mechanism > was a 9-track > tape drive that required you to disconnect your dryer as part of the > boot-up process....... Even more if it requires some manual intervention in octal before the boot process can begin. :) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 5 months

IRIS Power Series power supply questions

by pete＠dunnington.u-net.com

On Jan 28, 12:17, Christopher Smith wrote: > Hi everybody, > > In preparation for my eventual booting of the IRIS Power Series > machine, I pulled the back off yesterday and inspected the power > supply, etc. [...] > The square-ish plugs should all be plugged in to the plug they > match. (I thought this one was pretty safe.) That would be my assumption too. > The three loose post-screws go to the three wires that were just > floating around loose (coming directly (more or less) out of the > twist-lok plug. These screws are labeled N~, L~, and <earth > symbol> > > The Earth pin on the twist-lok plug is the longer one. (made sense > to me, but I can't find anything to confirm it...) > > The L~ probably stands "Live" or something like that (?) > > The N~ probably means "Negative" L is Live (or Line in the US), N is Neutral. > The positive lead on the twist-lok plug is the one that has the > breaker on it. > > Given that logic: > > The L~, being positive, should be attached to the wire with the > breaker in it. Yes. > The wire connected to the long pin on the plug should be connected > to the <earth symbol> connector. Yes. The reasoning is that the earth connection should always be the first one made and the last one broken in normal connection/disconnection. > The other wire should be connected to the only loose-screw left. > > There is further evidence in the way the wires were bent, which > suggests that this is all correct. > > Has anyone see these things before, and can possibly confirm this? Yes. The live wire is always the one with the switch, breaker and/or fuse, unless it's a two-pole breaker (one pole for live, one for neutral) of course. -- Pete Peter Turnbull Network Manager University of York

22 years, 5 months

HPIL ISA card

by pcw＠mesanet.com

Whilst rooting through a junk box looking for something else, I found this HP ISA HPIL interface card 82973-60001. Free for shipping... Peter Wallace

22 years, 5 months

What's an Intel Series 90?

by rigdonj＠cfl.rr.com

above. It looks like some kind of memory system for VMS and possibly others. Joe

22 years, 5 months

Need source for high current HP type (with dimple) 14 or 16AWG 110vac power cord

by pete＠dunnington.u-net.com

On Jan 28, 9:28, r. 'bear' stricklin wrote: > I brought home a pair of SGI Onyx RealityEngine2 systems yesterday, and > had just sat down to see if I could determine how much effort it would > take to locate power cords to fit them. Then I see that Russ has done my > homework for me. Nice! One in each pocket, was it? -- Pete Peter Turnbull Network Manager University of York

22 years, 5 months

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test-drb January 2002