test-drb November 2002

test-drb@ccmp.vtda.org

252 participants
556 discussions

by Fred.van.Kempen＠microwalt.nl

Hi All, Although I am aware of the (VMS) Hobbyist License (which I still dont have, GRRRRR) which provides licenses (PAKs) for VMS and its layered thingies, I have a question regarding this. Over time, I have accumulated a fair number of official DEC PAK's for various of their software systems. Most of these were part of deals where I got or bought some company's complete systems room inventory, so, systems, periphs, media, manuals and licenses (lock, stock & barrel is the expression, imsmr). Now.. are these licenses still valid? I can't find any date expiration and/or software version limitation info on the PAK sheets, so, would assume they're still valid... I'm asking, because I want to provide a login services to a VMS, Ultrix and RSX host for some of my customers, to basically "host" their application for them. Kinda ASP-ish, old style ;-) Obviously, this would _not_ be for th Hobbyist License, soo.. licenses needed. I can get a customer's RSX11MPlus license, because I will terminate his machine (for him ;-) and move the contents over to mine. The VMS and Ultrix licenses I already have, but, again, they don't have my company's name on them. Does anyone know? Thanks, Fred

21 years, 8 months

875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU

by jwillis＠arielusa.com

The lights do come on, it's just that the ones that come on are (o) = lit, ( ) = not lit ( ) Power OK ( ) Over Voltage (o) Over Current (o) +2.5V Fail ( ) +5V Fail (o) Reg Fail ( ) Over Temp (o) Power Have the printsets now, will probably take both units apart for Inspection and cleaning. John -----Original Message----- From: Peter Turnbull [mailto:pete@dunnington.u-net.com] Sent: Thursday, November 07, 2002 2:45 PM To: cctalk(a)classiccmp.org Subject: Re: 875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU On Nov 7, 13:43, John Willis wrote: > Anyone have any documentation on these units as far as > What to do when the fail lights come on? The Field Maintenance print sets for the PSUs and the power controller are available at http://208.190.133.201/decimages/moremanuals.htm (part of the DFWCUG Historical CPU Preservation Society). They are BIG files. If an 875 power controller is like an 876, then if the lights don't come on, reset your breaker :-) I don't know about the H7104's (I've never seen one up close). I assume there is something plugged into the 3-pin Power Bus connector, or you have the three-way switch in the "local" position, otherwise it won't turn on. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

Paging AntionioC...

by Fred.van.Kempen＠microwalt.nl

pse drop me an email, I lost yours! --fred

21 years, 8 months

875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU

by pete＠dunnington.u-net.com

On Nov 7, 13:43, John Willis wrote: > Anyone have any documentation on these units as far as > What to do when the fail lights come on? The Field Maintenance print sets for the PSUs and the power controller are available at http://208.190.133.201/decimages/moremanuals.htm (part of the DFWCUG Historical CPU Preservation Society). They are BIG files. If an 875 power controller is like an 876, then if the lights don't come on, reset your breaker :-) I don't know about the H7104's (I've never seen one up close). I assume there is something plugged into the 3-pin Power Bus connector, or you have the three-way switch in the "local" position, otherwise it won't turn on. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

VAX and Alpha K/V/M cables.

by allain＠panix.com

Hi, I'm looking to cable up an Alpha 3000/300 I just picked up and am checking on the DEC cable to do so. There are many: BC(C03,13B,18P,19S,23K) Do they all have the same pinouts at the D15 side? sim.: Is a mV2000, vS3100 cable OK on an Alpha? John A.

21 years, 8 months

875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU

by jwillis＠arielusa.com

Anyone have any documentation on these units as far as What to do when the fail lights come on? John Perkins Willis Software Engineer/Database Architect Ariel Technologies (505) 524-6860 jwillis(a)arielusa.com

21 years, 8 months

Repairing devices

by rigdonj＠cfl.rr.com

I checked around but I can't find any info on this model laser. Is there a date on it anywhere? Here <http://www.spectraphysics.com/products/cld_products/stabilite_series.html> is a link the the Stablite lasers on Spectra Physics website. There's also a phone number on that page. I would call them and get the specs for that laser and ask (1) if it's a hard sealed laser (2) if that's the right power suplly for it. Someone clould have just stuck any power supply with it and the wrong PS could certainly cause the problems that you're having. If that is the right PS ask them what the operating current, trigger and operating voltage should be. Joe At 10:07 PM 11/6/02 -0500, you wrote: >On Wed, 30 Oct 2002, Joe wrote: > >> Hi Pat, >> >> I'm assuming that your laser is helium-neon laser. If so, then if >> it's 23 years old it almost certainly has what they refer to as a >> soft seal between the electrodes and glass tube. The problem with the >> soft sealed lasers is that the helium atoms are small enough that >> they slowly leak out of the seal. When they do, the mixture ratio >> changes and the ignition and operating voltage goes up until the >> laser will no longer operates. That's what it sounds like is >> happening with your laser. Your's sounds like it's it border line in >> that the PSU firing voltage can make it fire but the operating >> voltage isn't high enough to keep it operating. > >The laser is a Spectra Physics Stabilite model 24B 35mW HeNe laser, and >the power supply is a Spectra Physics Laser Exciter model 255. > >That seems accurate. I've rigged up a 'line conditioner' to give me a >cheap pseudo-variac to change the input voltage to the laser power supply >(the supply is a simple transformer -> rectifier -> capacitor type with a >current regulator stuck on it, here's a PDF I found: >http://www.repairfaq.org/sam/255apsch.pdf > >Does anyone know what the specs are on that transformer (eg rated output >voltage), and how far I can (fairly-safely) run it above its rated input >voltage? Specifically, it'd be nice to know an upper limit so I don't >explode the HV caps or diodes. > >> Further you can't just use a resistor as a dummy load. The laser >> tube is similar to neon and floresent lights in that it has a >> negative resistance. That is it has a certain amount of resistance >> until it fires and then the resistance decreases dramaticly. You >> have to use a ballast with such devices or else the current will >> increase drasticly and almost instantly burn out the device. The >> ignition voltage will be on the order of 20,000 volts but the >> operating voltage will be roughly 12,000 to 14,000 volts. > >By looking at the schematic I linked above, it looks to run at a lower >voltage than that, but it's hard to tell without a HV meter or knowing >what the tranformer is outputting. > >> Be careful using a scope around these things. It probably isn't made >> to handle nearly the kind of voltages involved in the laser. You >> need a good high voltage probe for checking these things. You can >> use one made for TV repair. They're fairly easy to find and are >> reasonably priced. > >I wasn't going to scope the HV side, and since there is no LV side of the >power supply, I'm just not going to bother looking at it with a scope. >Besides, it's a simple enough circuit to troubleshoot with a HV meter. > >> If you send me the brand and model tube I may be able to tell you if >> it's a soft sealed tube and other details. >> >> Joe >> >> At 04:38 PM 10/30/02 -0500, you wrote: >> >I know this is a bit OT, becuase it's not really computer related, but the >> >hardware is at least 23 years old, so that's my excuse for posting to the >> >list... >> > >> >I've got a 35mW HeNe Laser + Power supply that I picked up today for next >> >to nothing. It seems to be having some problems - the laser (somtimes) >> >blinks a few times when I first turn it on, and then stops. From the >> >sound of the power supply it's either a loose connection (which I doubt >> >after opening it up and taking a good look around) or there's a problem >> >with the power supply. >> > >> >Now, I've never really worked on a HV power supply before, and I'm trying >> >to be careful when I play with things. First off, does anyone have a >> >general idea of what sized dummy load ("resisitor") I should try haning >> >off of the HV output to properly load it? I noticed that the laser tube >> >has 3x27kohm resistors in series, would a couple watt approx 81kohm >> >resistor be a good idea? >> > >> >Also, does anyone have an idea for a failure mode to look for? I've got >> >an O'scope, dmm, and various other tools at my disposal, but no >> >'authentic' HV test/mesurement gear. >> > >> >I'm just looking for general guidelines. >> > >> >Thanks! > > >Pat >-- >Purdue Universtiy ITAP/RCS >Information Technology at Purdue >Research Computing and Storage >http://www-rcd.cc.purdue.edu > >http://dilbert.com/comics/dilbert/archive/images/dilbert2040637020924.gif > > >> > >

21 years, 8 months

cctalk digest, Vol 1 #259 - 6 msgs

by foxnhare＠bigvalley.net

Well, here's my "me too VCF writeup," with pictures of VCF and the computer museum for those who can't get enough... http://www.portcommodore.com/vcf5/ Larry P.S. ...and the final programs from the programming challenge! -- 01000011 01001111 01001101 01001101 01001111 01000100 01001111 01010010 01000101 Larry Anderson - Sysop of Silicon Realms BBS (209) 754-1363 300-14.4k bps Set your 8-bit C= rigs to sail for http://www.portcommodore.com/ 01000011 01001111 01001101 01010000 01010101 01010100 01000101 01010010 01010011

21 years, 8 months

cctalk free stuff -- AIM65

by r_beaudry＠hotmail.com

>I want the AIM-65. Sheesh! ... EVERYONE wants the AIM-65.... The random number generator is going to be thoroughly stresed out over the weekend! :-) Rich B. _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail

21 years, 8 months

Fwd: Terminal documentation

by jss＠subatomix.com

I saw this on the info-pdp11 list and thought some of our repository managers might like his manual to scan or stow. Contact Rob directly, please. ---------- Begin forwarded message ---------- From: Rob Brown <brown(a)gmcl.com> To: info-pdp11(a)village.org Date: Wednesday, November 6, 2002, 8:50:08 PM Subject: Old documentation I have in my hand a "Vision II 3220 User's Manual" which describes a VT220-type terminal from Lanpar Technologies (or maybe Northern Technologies, both names are used). Probably around 100 sheets, two-sided. Is there any repository that would like to have this? -- Rob Brown brown(a)gmcl.com G. Michaels Consulting Ltd. (866)438-2101 (voice) toll free! Edmonton (780)438-9343 (voice) (780)437-3367 (FAX) http://gmcl.com/ ---------- End forwarded message ---------- -- Jeffrey Sharp

21 years, 8 months

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test-drb November 2002