test-drb March 2001

test-drb@ccmp.vtda.org

214 participants
552 discussions

by jerryjh＠imt.net

On 2001-03-25 classiccmp(a)classiccmp.org <Russ Blakeman> said: >I've been able to get a lot of older/odd battery packs in the past >from Batteries Plus, a chain of battery suppliers. Some had to go >to their "lookup techs" but within 3 days they always had a source >for one. They aren't always the cheapest though, a lot depends on >the individual franchise owner and how much he/she will haggle with >you. I have a reseller account with a nearby one and the owner >always gives me a decent break. Before I went on the Internet, I went to Batteries Plus. Yes, they did list a battery for my Sharp PC-4502, yet they didn't call me back and actually "forgot" to get back with me, even though they had it written down in a notebook on their counter. Considering how quickly I got serviced from the Raymond Sarrio company, I'd consider them a serious contender with Batteries Plus in the category of classic machines. Jerry... on his IBM PC/AT 5170 Model 339 | My laptop computer's a ***** 9600kbps/30MB HD/512k RAM/8 MHz | Tandy TRS-80 Model 100 Net-Tamer V 1.11.2X - Registered

23 years, 9 months

TU-58 rollers and emulation (was Re: VAX 11/725)

by brian.roth＠firstniagarabank.com

The LCD package for LRP is at: http://lrp.steinkuehler.net/Packages/LCDProc.htm I might be able to help you with parts for your RK11-C restoration. You have a working classic-8? Brian. I even have an LRP package for interfacing an LCD to my router so you can > watch the IP traffic. Love to get a URL to that. I run LRP myself, and set them up for friends with cable modems about every other month. > Way cool project BUT the display is still in the bubble wrap. Same problem, > little time. It's all about priorities. I have a set of back burner projects that have been there for ten plus years, but they are still there (RK11-C restoration, PDP-8/i re-restoration, TU-58 emulator, Straight-8 cleaning (printer's ink), and such). -ethan Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

23 years, 9 months

RK11-C and Straight-8 restoration

by djg＠drs-esg.com

> From: Ethan Dicks <ethan_dicks(a)yahoo.com> > > I have the delay line needed to add the second core stack to > the -8/i. That is another goal - upgrade the mem on the -8/i and try to > get some sort of mass storage device on it and install some kind of OS on it. > Got peripherals (RK05, RX01, DF32/DS32, TU56, PR04). Lacking in pre-omnibus > interfaces. > The DF32 is a external bus device so just hook up the 11 interface cables and away you go. I am restoring one of my 8/I's with DF32 now, computer is running and hope to have the drive finished this weekend. I should finish the DF/DS32 manual scanning also this weekend, it will be up with the rest soon and more pictures of the 8/I and DF32. The disk monitor system runs on DF/DS32, the paper tape image (and DF32 diags etc) are in ftp://ftp.pdp8.net/software/paper_tapes/ docs http://www.pdp8.net/query_docs/query.shtml OS/8 will run with a DF32 and DS32 and 8k but may not have enough space to be too useful. I also may be able to help with 8/I parts. The reader/punch can also be hooked up to an 8/I if it had the interface cards in the 8/I. Longer term the 8/I will join the 8/E runnable online although I will have to replace the disk heads with an emulation since the drive lands the heads on the disk when it spins down so has a limited number of spin down cycles. The platter is nickel cobalt alloy so is more durable than the iron oxide ones (ex RK05's) when the head does hit it. I also have a Straight 8 maintenance manual on the too scan list, if you need it (or any others, I may have them) before I get to it let me know and I will do it sooner. David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights

23 years, 9 months

Virus Alert !!!

by SUPRDAVE＠aol.com

<sigh> another reason not to use Micros~1 products for email... In a message dated 3/6/01 7:33:09 PM Eastern Standard Time, rigdonj(a)intellistar.net writes: << > >The following came to us at work, and I wanted to pass on the info: > >STRICOM has received official notification of a new virus in the wild called >the Naked Wife Virus. > >This virus is sent by email message with the subject of the "Naked Wife" or >"FW: Naked Wife" with text of "My wife never looked like that! ;) ". >There is an infected attachment named "nakedwife.exe". When opened, this >virus resends itself to other recipients in address book. This virus also >affects all .dll, .exe, .com, and .bitmaps files. Do not open this email >or the attachment if received. > >Information has not yet been received as to whether Norton or McAfee will >detect and clean this virus. > >Microsoft Outlook email systems are the primary target of this virus and we >do not believe Lotus Notes is affected >> -- DB Young Team OS/2 old computers, hot rod pinto and more at: www.nothingtodo.org

23 years, 9 months

Heath Zenith Hero Jr

by guerney＠bigpond.com

I was amazed to find a local classified ad for a Hero Jr in the Saturday morning paper and soon after I was owner of a very clean Robot for a few dollars (about time I had that sort of luck). Unused for many years but just some cobwebs inside, no corrosion. No charger or remote control or cartridges or documentation unfortunately, but there is lot of technical info on the web I have found today. The old battery will not take a charge using my car [translation - auto] battery "trickle" charger, so I'll have to wait 'till next week to buy a new 12V 3.5A sealed lead/acid battery - that's how this Australian model was powered - not like the 6V batteries described on the web pages for the Hero Jr. And I don't have a 12V PSU to power it up with in the meantime. Am I using an appropriate re-charging device? And could I use the trickle charger itself as the PSU for testing? A multimeter reads about 13V across the terminals when it is powered up, but with my minimal electrical knowledge I do not dare try something that could be fatal to the Hero. None of the Web pages mentioned how much this thing cost new (Feb 85 manufacture date I suspect by a sticker on board inside) and I am curious about that. If anyone has any warnings or "gotcha's" about working with this thing, I'd be glad to hear from you. Other than that, I can't wait - from the info on the web it sounds great fun. And it goes to show, however rare or unusual the item is - eventually one of them turns up here in Brisbane, Australia. Phil

23 years, 9 months

Apple Lisa-Sun Stuff

by brian.roth＠firstniagarabank.com

Both the SPARC's have been spoken for. If I get any more I'll post them here again. Thanks, Brian. Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

23 years, 9 months

Apple Lisa-Sun Stuff

by brian.roth＠firstniagarabank.com

I picked up an Apple Lisa this weekend and it is missing the keyboard and mouse. Anyone on the list have one they would like to part with? trade? money? etc... I also have a couple of Sun SPARCstation LC's free to good homes. They do work but no monitor, keyboard or mice. Just the lunchbox. Also, I do not have the root passwords. Brian. Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

23 years, 9 months

10Base5/Thicknet (was Re: SUN networking problems)

by mmcfadden＠cmh.edu

I seem to remember crawling through the interstitial floors in the University of Kansas Medical center dragging 500 feet of yellow cable between our VAX and a Siemens MR scanner. I may have some pieces of the cable and a vampire tap or two if I can find them. I'll bet the original cable is still there just unused. We never removed old cable just left it in place. We did have to make it look like the "official" network cables or the hospital wondered who had been in the interstitial spaces. It's kind of hard to tap a cable while holding a flashlight in your mouth and trying not to fall into any of the patient examining rooms below you. I also have some of the cabletron boxes with a heartbeat that we used to convert thin coax to RJ45 or Thicknet to RJ45, in fact there is one is use across the hall from me connecting the GE CT scanner to a 3D workstation. I see them ocasionally at my local computer surplus, the PC guys want to throw them away because they don't recognize them. Allied Telesyn CentreCom MX10 IEEE802.3 microtransciever 10 base 2 (mau) Mike mmcfadden(a)cmh.edu

23 years, 9 months

SUN networking problems

by pete＠dunnington.u-net.com

On Mar 21, 7:39, Arno Kletzander wrote: > we're running a *small* network consisting of two Sun SPARCstations (1+ and > 2) and a CalComp CCS600 ES laser printer. They're all connected to > "Transceivers" with 15-pin Sub-D connectors on them which sit along a yellow cable > (approx. 10mm = 4/10" in diameter). AFAIK this concept is called "Thick Ethernet" > (IEEE 802.3), am I right? Yes, that's right. > we've put another transceiver on the cable strictly according to the > installation guide that came with it (drilling hole into cable with > recommended tool etc...). > Since we've done that, it's no longer possible to print from one of the > SUNs to the CalComp although the PC is not yet connected to the > transceiver. > The whole assembly looks somewhat like this: > > TermRes _______ _______ _________ _______ TermRes > I-------I TC1 I------I TC2 I------I TC3 I------I TC4 I------I > I I I I > SUN 1+ SUN 2 CalComp (planned) PC It sounds like you've shorted the cable. Do those transceivers have a set of LEDs on them? I suspect not, but that might tell you if anything is being transmitted/received. You could try removing one terminator and testing the DC resistance between core and shield of the coax; it should be 50 ohms with nothing powered up. If you have shorted it, the best solution is to cut out the damaged part, fit an N-series plug to both ends, and put a coupler between them. Or, instead of a coupler, a transceiver with N-series connections (which are more common and cheaper than vampire taps anyway). Another way is to discard some or all of the thick coax, and use thin coax with BNC connectors instead. Then you use BNC T-pieces to connect to miniature transceivers, which are fitted directly to the 15-pin sub-D AUI connectors on the backs of the machines, with no bulky drop cables. You can get N-to-BNC adaptors and BNC terminators for pennies. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

SUN networking problems

by pete＠dunnington.u-net.com

On Mar 26, 7:28, Arno Kletzander wrote: > Hi folks, we powered up the working pizza box and the laser this weekend. At > first we got a lot of > le0: no carrier - transceiver cable problem? > style errors during bootup and in the console window, but they disappeared > when we re-seated the AUI cable on the SUN. Unfortunately, that was not all of > the problem. If you now try to print to pa3 (which is the CalComp?s name), > the job is stored in the printer queue, but there also appear a number of > error messages "No answer from host pa3 on parallel port" when you LPQ for it. > PINGing for the printer ends up with "no answer from pa3". > Is the SUN trying to send the data to a parallel-port printer although the > CalComp is on the Ethernet? Maybe. Have you tried pinging the printer by it's IP address instead of it's name? Try a broadcast ping? Have you checked the printer settings to make sure it's using the correct IP address? Is that set from its panel, or by RARP/BOOTP/DHCP? If the latter, it needs a server to boot. If the Sun didn't get a valid signal from the transceiver when it booted, it might not have enabled le0, or there might not be a route through it. Check with "netstat -rn" and "ifconfig le0". > Peter Turnbull wrote: > >Do those transceivers have a set of LEDs on them? I suspect not, but that > >might tell you if anything is being transmitted/received. > > On the transceiver connected to the SUN, the PWR (green) and SQE (yellow) > LED are alight as long as the system is powered up. That's how it should be. However, if there is an LED for either transmit or receive, it should flash when you try a ping. If it doesn't, either the Sun isn't sending the packet or there's a short circuit. > The only (green) LED on the > printer?s transceiver is also on as long as the printer is. That probably just means it has power. > If I connect the printer to one of the 3-LED transceivers, the PWR LED is on > all the time and the other two give very short flashes when the printer has > completed its warming-up cycle and is in ready mode. Both LEDs? I'm guessing as to what the LEDs do, but that probably means it's transmitting something. Maybe an ARP or BOOTP request. It depends on what the LEDs do. One might be for collision, in which case there's a cable fault if it flashes. More likely one is transmit and the other receive, in which case what you see is correct, it transmits a packet and simultaneously detects what it's transmitting. > There are also three LEDs on the back side of the printer next to the AUI > connector; two of them (green and orange) illuminate during the warming-up > phase, then the orange one goes out and the green one begins to flash. > I have not noticed any flickering etc. of LEDs when trying to print or ping. Hmm... What are the LEDs on the transceivers labelled? Mine have 5 LEDs: Power, SQE, Transmit, Receive, and Collision. (I also have several transceivers with no LEDs, or just one for power, but none with three.) > Tony Duell wrote: > >How hard is it to swap over the transceiver cables between the 2 Suns? If > >it then works, you know the problem is either the transceiver that used to > >be connected to the working sum, or a nasty problem caused by reflections >on > the cable Not necessarily, it might not have brought up the le0 interface if the AUI cable was disconnected when it powered up. > on the cable, the band is: > -in one case, inside the tap block > -in two cases 1 and 2cm out of it (which means ca. 6cm away from the core > contactor pin). > We placed the new one also in such a way that the band is now inside the tap > and not visible from the outside. Sounds like two of the original tranceivers are slighly off position according to the specification, but on a relatively short cable with only a few transceivers, I doubt a small deviation matters very much. > How about the distance terminator to first tap? I measured here about 1.25 > meters, which would be half the tap-to-tap distance. As I don?t know much > about signal transmission in Coaxes, does this make as much sense as it seems to? The distance to the terminators doesn't matter, it doesn't have to be any particular distance. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

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test-drb March 2001