March 2025 - cctalk - classiccmp.org

VCF West 2025 Survey - Final Days - Mountain View, California

by Jeffrey Brace

There are only 5 days left to fill out this survey! Help us make a great show for VCF West 2025, please fill out this survey: https://forms.gle/R1kSCsVqEyZfgQ4Q8

5 months, 4 weeks

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VCF EAST CONSIGNMENT HAS A BIGGER SPACE! - April 4-6, 2025 - Wall, NJ

by Jeffrey Brace

VCF EAST 2025 CONSIGNMENT HAS A BIGGER SPACE! VCF now has a 7000 square foot space for consignment! Plenty of space for everyone's items and less waiting time to get in! Information about consignment is here: https://vcfed.org/events/vintage-computer-festival-east/vcf-east-consignmen… Register and enter your new items into consignment here: https://nexopos.vcfed.org/ The show is April 4-6 in Wall, NJ. More info here: https://vcfed.org/events/vintage-computer-festival-east/ Tickets here: https://vcfed.org/vcf-east-tickets/ Jeff Brace VCF East Showrunner

6 months

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Indius Java components

by silcreval

A very left field question, but many moons ago I wrote some software using Nescape IFC. For those with long memories that was an early GUI library for Java that predates Swing. For no reason at all I'd like to get this software running again, but noticed that I probably need a 3rd party library that was produced by Indius. These IFC add ons provided a fantastic grid and tree component. The software was I believe finally released with a GNU license in the 00s but despite searching on archive etc I've not been able to find it. Does anyone by any chance have an archived copy ? Netscape IFC was quite a big thing when it was released by the way, and many books were written about it. It was also bundled with Netscapes browsers in the day, so available wherever they were installed. I believe the team that created IFC went on to make Swing, which is in many ways similar, but added a lot of bulk which at least in the early 00s made things slow. Thanks Ian

6 months

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IDT 49C402BG84 Pinout?

by Holm Tiffe

Hi all, I'm dreaming to build sometimes my own Bit Slice CPU (when I have spare time) and I have collected several IC's in the last years for this purpose. Today a small antistatic bag with 4x IDT49C402BG84 and two IDT 49C410J fell in my hands while I was sorting some stuff. I know what they are and what they could do, they are able to help me to build a Bit Slice CPU w/o very large PCB's connecting hordes of 2901 etc. Besides of that they are CMOS and should draw much less power. But I have a problem with the 49C402: All datasheets that I could find until now, don't have the pinput auf that nice PGA84 package, there are DIP68, LCC/PLCC68 G68 or PG68 and QE68 "Cerquad" pinouts listet in every datasheet, but I have 4 chips in a PGA84 housing... This ebay page has pictures: https://www.ebay.com/p/10020043211 I don't have anything todo with the seller. Can anyone help finding the pinout? The chips itself don't seem to that seldom... Kind Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583 info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741

6 months

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DEC CP11-U (M7824) Documentation?

by Christian Gauger-Cosgrove

Hello all, I'm curious, does anyone have any documentation on the CP11 card punch option? From the '91 Edited Option Module List and various iterations of the "Field Guide to QBUS and UNIBUS Modules" that it's: 1. A card punch, 2. A UNIBUS device, and; 3. It uses the M7824 board. I'm most particularly interested in if anyone has any programming information on it. Best regards, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.

6 months

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VCF West 2025 Survey - Mountain View, California

by Jeffrey Brace

SAVE THE DATE! VCF West is back on August 1 & 2, 2025 at the Computer History Museum in Mountain View, California. Please fill out this survey to help us with planning: https://forms.gle/R1kSCsVqEyZfgQ4Q8 This survey is for everyone! We have started plans to make VCF West a bigger, better, and more unique show than we ever have before! We're partnering with the Sacramento Amiga Computer Club and AmiWest to celebrate the 40th anniversary of the Amiga and other special guests. We will have quality speakers, a large consignment area, exhibits galore and our Friday Night Social. Exhibit space will, however, be limited so we are going to be selective in the process. There is still room for talks so if you're interested or know someone who is, please let us know at vcfwest(a)vcfed.org We're looking forward to seeing you there! Take care! Jeff Brace VCF National Board Member Chairman & Vice President VCF East Showrunner MARCH Fundraising Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/>

6 months, 1 week

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Re: ROM to Flash Adapter for HP Portable PC ROM Drawer help

by Martin.Hepperle＠dlr.de

Mike, you might also want to have a look at https://www.hpmuseum.org/forum/thread-15356.html For testing , I have used a regular EPROM mounted on an external PCB and connected it with a ribbon cable to the ROM drawer. There are ribbon cable - DIP connectors with thin pins, which can be used without destroying the sockets inside the ROM drawer. You should not use normal pin headers as these pins are too thick and will damage the sockets. Unfortunately, many replacement solutions use such headers. You can buy individual, thin pins, but these are relatively expensive (e.g. at Mouser). The height of a replacement should be similar to a normal EPROM, so a thin PCB with a flat SMC Flash RAM might be a viable solution. This will also require a programming adapter. On the other hand, 128 KB capacity is still rather limited - e.g. Turbo-C header files are too large to fit into one EPROM, even if compressed by removing comments and whitespace. However, it should be possible to link software over two 128K modules, as was obviously done with Word Perfect in the days (see the Portable Paper). This linking requires some modification of the FAT entries in the image files, which I have not yet tried. Martin

6 months, 1 week

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Need a dot-matrix impact printer?

by Van Snyder

Do you need to print on multi-part carbon or NCR forms? Do you need a dot-matrix impact printer? I have a Star Micronics SB-10 dot-matrix impact printer. It has a parallel interface. My late brother was using it so I assume it still works. None of my computers have a parallel port so I can't test it. Printer, cable, manual, spare ribbon, original shipping packaging. If you want it, it's yours for the price of a PDF shipping label, 20" x 20" x 10" 30 pounds.

6 months, 1 week

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Vendor for data recovery from TK50 and TK25 tapes?

by dbrock＠computerhistory.org

Hello everyone! I'm new to the list, but am posting here on the suggestion of Chuck Guzis. I'm a curator at the Computer History Museum, and am trying to identify a vendor who could potentially work with us to recover data from a set of TK50 and TK25 tapes that came to us in an archival collection. Any pointers would be much appreciated. I can be reached directly at dbrock(a)computerhistory.org Thanks in advance for your time, David

6 months, 1 week

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networking on CTOS

by r.stricklin

Trying to experiment with TCP/IP (and, to a lesser extent, OSI and BNet cluster) networking on a Convergent/Unisys CTOS system (SuperGen SG3600). Am experiencing several anomalous results and would love to have a chat with someone who has real experience with this… if some such person is on the list. Thanks! ok bear.

6 months, 2 weeks

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