test-drb September 2010

test-drb@ccmp.vtda.org

163 participants
222 discussions

by rikbos＠xs4all.nl

I suppose this is on topic, I got a few (5) Barcrest CPU boards and ROM modules. If someone needs them contact me off-list. Items are located in the Netherlands. -Rik

13 years, 8 months

OT: Akai VT-100 video tapes

by rikbos＠xs4all.nl

A small OT question is there someone on the list who can digitize Akai VT-100 video tapes. I'm asking this in behalf of the owner of the tapes and a non-working VT-100 system. I suppose the tapes are PAL because the owner of them lives in the Netherlands. The digitizer can have the system if he likes. -Rik

13 years, 8 months

Help Identifying this Engineering/Mainframe panel

by nick.allen＠comcast.net

Ok I am stumped, I just acquired what I believe to be a Engineering/Mainframe Control Panel, but I can't find a model number, manufacture or any documentation on it. Anyone recognize this panel, or what it might have be used on? http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs303.ash2/58384_429250116851_5…

13 years, 8 months

How to repair Tektronix 4696 inkjet and what to use for

by Arno_1983＠gmx.de

jim s <jws at jwsss.com> wrote: > On 9/8/2010 9:18 PM, Teo Zenios wrote: > > Is that what they look like (used but cheap) > > http://www.kpsurplus.com/tektronix-4696-maint-cartridge-016-0838- 00.html > > . > > Is that realy an inkjet and not some solid ink printer? > > > <snip> > Ted, > From what I could read on the somewhat blurry photo, the instructions > have many cautions about fluid on the cartridge shown. I don't know > what a Maintenance cartridge is either. It may be that the thing is > inserted and consumed cleaning the system, but the instructions sound > like it is a supply cartridge of some sort. Perhaps the cycle of the > printer draws on this in addition to ink supply cartridges. > > At any rate, it certainly is dealing with fluid, not solid. > Jim >From some discussion fragments I found on fixyourownprinter, the 4696 is a "real" (liquid) ink printer, since people talk about using conventional inkjet refill ink in the ink wells and flushing/cleaning out the ink lines. The link to the picture above didn't work for me, but I found the article in KP Surplus' eBay shop. Putting the maintenance cartridge P/N into a search machine took me to http://hazard.com/msds/f2/blx/blxkp.html, which has the MSDS for the fluid and also states the composition: DIETHYLENE GLYCOL MONOETHYL ETHER, Fraction by Wt: 20%; TETRASODIUM ETHYLENE DIAMINE TETRAACETATE, Fraction by Wt: 0.3%; WATER, Fraction by Wt: 79.7% The term "Maintenance cartridge" was known to me from the manuals of the later Tek/Xerox "Phaser" series solid ink printers, since I have a Phaser 340 standing in the basement since last year. I think the name refers to the fact that it has to be changed as a part of regular maintenance; it has however to be installed all the time for the printer to operate. In these printers, the maintenance cartridge applies a clear oily fluid from a plastic bag to the surface of a heated metal drum by means of a felt pad. This serves as a sort of anti-stick coating for the ink (think "fuser oil") because the image is first printed to the surface of the drum to be transferred onto the paper or film later. There is some sort of MSDS buried in the appendix of the Phaser 340 User's Manual which indicates that the fluid in the maintenance cartridge is silicone oil (Polydimethylsiloxane, CAS Number: 63148-62-9). Mostly harmless: "Hazards: ... Ingestion: Swallowing large amounts could cause discomfort. ... No first aid should be needed." The usage counter on the maintenance cartridge is realised by a spindle driven from the printer mechanism by gears and a moving block which hits a mechanical switch when the cartridge is supposed to be depleted. ISTR there is some sort of anti-windback device but nothing that looks impossible to overcome. The bag even has a thermo-sealed filling line attached to it which could be used to replenish it. So long, Arno -- Achtung Sicherheitswarnung: GMX warnt vor Phishing-Attacken! http://portal.gmx.net/de/go/sicherheitspaket

13 years, 8 months

How to repair Tektronix 4696 inkjet and what to use for the cleaner fluid cartridge?

by rmay635703a＠yahoo.com

I own an old Casi Computer Portraits System with an old dried up Tektronix 4696 inkjet printer (the one with the actual wells)? Anyway I receieved it sort of working but it only would print Black and blue the other colors were plugged, I made the mistake of turning on and off too many times and wasted all teh fluid in the one remaining maintenance fluid cartridge.? Anyone have any ideas how to coax this beast to life?? I can pretty much use any ink.? Also I need to know the Dipp settings on the unit because i have a feeling it isn't configured for my box. ? The maintenance fluid has me stumped, distilled water maybe? ? Thank You Ryan May

13 years, 8 months

Olivetti JP101 ink cartridges?

by ard＠p850ug1.demon.co.uk

Since we are discussing obscure printer consumables... I have just bought an Olvetti JP101 on E-bay. This is the 'sparkjet' printer that was sold in the mid-1980s. It was commonly used over here with the BBC micro, and I beelive an Acorn-badged version existed. Mine has the Olivetti nameplate. One problem (and I knew this before bidding, I am not complaining) is that the ink cartridges for it are unobtainable. The machine came with a nearly-new one in it, and 2 brand new spares ,so I can at least try it out. But when i've used those up, nothing... The ink cartridge is a glass tube tapered to form a jet at the front end. It contains a solid ink with a compression spring [1] behind it which also acts as an eleectrical conenction to the rear metal end cap. Thetube is fitted in a little plastic holder. It clips into the printer carriage, an high voltage is applied between the ink (via the end cap and spring) and a metal paper guide. The resulting spark transfers some ink to the paper (note that the sparrk does not attempt to pass through the paper, and the paper is not special in any way. It's a pity the cartridges are unobtainalbe, since apart from the HV transformer module (which also contains at least one rectifier diode and maybe a limiting resisotr), the mains transformer (which is not likely to fail) and a programmed 2764 EPROM, all the other electornic compoents are standard (Z80 CPU, Z80 CTC, TTL chips, etc) and easy to get. The mechanism is pretty well made too, and looks easy to keep going. Does anyone have any suggestions as to how to make ink cartridges for this machine? -tony

13 years, 8 months

ST-412 interface MFM drives over on Erik's VCF

by cclist＠sydex.com

I know that some folks are on the prowl for the Maxtor XT-2190 and XT- 1140 big MFM drives. There's a fellow from New Jersey who's selling a couple on Erik's VCF: http://www.vintage-computer.com/vcforum/showthread.php?21977 --Chuck

13 years, 8 months

Free: HP 264X terminal boards...

by derschjo＠mail.msu.edu

Hi all -- Doing some cleaning, I came across a box containing a number of old HP boards. I've had these a long time -- I think someone gave them to me when I was still in high school. Based on a cursory search of the 'net, these look like they possibly belong to an HP terminal, of the 264X family. (see pics: here http://www.hpmuseum.net/exhibit.php?hwimg=240) I don't own an HP 264X terminal, so I obviously have no need of these -- maybe you do? They're in decent, but not great shape. Obviously I've no idea if they work. If anyone wants them, you can have 'em for the cost of shipping. Drop me a line. The boards I have are labeled in the upper-left corner thusly: 02640-60192 CONTROL MEMORY (these have what appear to be ROM chips) 02640-69192 CONTROL MEMORY 02640-60209 PROCESSOR - contains an AMD fabbed 8080 processor w/hp PN 1820-1701... 02640-69124 DMA 02640-69112 DSPLY CNTL 02640-60125 GRAPHICS M-CONTROLLER 02640-69126 GRAPHICS DISPLAY PCA 02640-60171 UNIVERSAL MEMORY PCA - Josh

13 years, 8 months

Fwd: Re: multics (possibly) front panel or 6180

by jws＠jwsss.com

Tom has seen a large share of Multics front panels, and here is his reply. Nick, I can put you in touch, or you can contact the webmaster at multicians.org (that is him) for further investigation. Thanks for putting up the photos full resolution. Jim -------- Original Message -------- Subject: Re: multics (possibly) front panel or 6180 Date: Fri, 10 Sep 2010 08:05:58 -0400 From: Tom Van Vleck <> To: Jim Stephens It is clearly a maintenance panel from a 6000 series. Since it says "APU" on the top and "PTW" and "SDW" it looks like a Multics machine. I agree we should find out more. regards, tom On Sep 10, 2010, at 4:40 AM, jim s wrote: > Is this possibly a 6000 series "front" panel? It certainly looks like that. > > Hopefully it is viewable from the links w/o facebook if you don't have it. > > http://www.facebook.com/album.php?aid=213052&id=530841851&l=714eeedccd > > Also this photo > http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs303.ash2/58384_429250116851_5… > > > it looks like one of the panels in this photo on the multicians site. > > http://www.multicians.org/multics-stories.html > > If so, sort of makes me sad. > > This is from a classic computing collectors site. > > It really looks promising. The fellow with the item is in Illinois. > Jim

13 years, 8 months

Happy 26th for the Mac 512k

by christian_liendo＠yahoo.com

Well,, The Amiga was released on July 24.. I kinda missed that.. In fact I was in Louisiana working on the Oil Spill with the Coast Guard so I couldn't get the blog running at that time. --- On Fri, 9/10/10, Dan Roganti <ragooman at gmail.com> wrote: > interesting, nice touch > > gggrrr, I don't see the Amiga anniv on there :) > > =Dan >

13 years, 8 months

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test-drb September 2010