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5.25-inch floppy disks expected to help run San Francisco trains until 2030 "We have a technical debt that stretches back many decades." Read in Ars Technica: https://apple.news/An_Y0mTlXRHO4o0y4QFm2lg

I have a PET 2001-8 with a 320008 board. My question is: what is the purpose of the red LED on the board? Mine does not illuminate. Computer does not boot. Just get a random character screen. Thanks! Don

Does anyone know of a Datasette Tape Head Alignment program for the PET 2001-8? I have seen them for the C64 and the VIC-20 but not the PET. I do not have a C64 or VIC-20 so I can't go that route. Thank you. Don

Does anyone know the thread size and style of the lid (hood) lockdown screws? Thanks, Don

I purchased a PET 2001-8 with a board that I do not recognize. The makers name on both boards (including the small one on the right top) are marked SKYLES ELECTRIC WORKS. I tried searching for this particular board but can't seem to locate it. Any ideas? Thanks, Don

Can anyone tell me what this board is and what its function is? Thanks, Don

I am looking to buy a working RCA 12VCLP4 CRT Tube for my Model III. Thanks, Don

Looking for an Apple III ROM chip 341(or 342)-0031. Either that or what type of EPROM would I use to make one? Thanks, Don

Anyone have an Otrona Attache Boot Disk in 96 TPI Format? Thank you, Don

Does anyone have an Otrona Attache Boot Disk in 96 TPI Format? Happy to pay for a copy. Thank you, Don

Can anyone copy or create an Otrona Attache Boot Disk? Happy to pay for the service. Thanks, Don

Can anyone make a boot disk for the Otrona? Happy to pay. Thank you, Don

I have a Hewlett Packard Visualize C240 Computer that I am giving away. I cannot get the case to open so bear that in mind. Lots of good parts including the CD unit. I will not ship this so please do not ask. I can recommend a company that will pick it up and ship it...

I have a Mac 128K with a Sad Mac Error Code of 040009 upon boot. I know it is a RAM chip buy which one? Thanks, Don

I have a Mac 128K Logic Board out of a Drexel Mac that shows a Sad Mac error Code of 04009. I opened it up and someone has done a strange job of replacing some RAM. I have another 128K board that has original Apple RAM chips in it so I need that swapped onto the Drexel board. Can anyone help...

I have an ICL Model 30 computer with a bad power supply unit. Rather than repair it I am trying to adapt a modern PSU. The power connector is shown in the photos below. Does anyone have a technical manual, schematic, etc that would show the pin outs for this power connector? Thank you, Don

I just acquired an ICL Model 30 computer with a monitor and printer. It is a 240V model. I used a Variac and a step up voltage converter to bring it up to proper voltage. The monitor and printer came to life. The computer fan turned on but I get no response from the computer - hard drive and...

I have a DEC PDP 11/23 as a Buy it Now on Ebay: https://www.ebay.com/itm/274768362799 Thank you! Don

I am looking for an IBM AT Model 5170 On-Off Switch Bezel. Mine was destroyed in shipping. It is the black plastic piece that is marked On-Off and surrounds the red power switch. It is part of the power supply so if you have a non-working PS and can sell me the switch bezel for a reasonable...

I have a DEC PDP 11/23 Packaged System for auction on Ebay if anyone is interested: https://www.ebay.com/itm/274726348044 Thank you! Don