Recent content by alpinewinter

Hello, I have a really cool Teleray terminal I received as part of a larger haul. Unfortunately it looks like most of the socketed components have been removed from the main board. The terminal is pretty clean inside and the tube doesn't have signs of much use. The CRT appears to have been made...

Hello, I have three really interesting S-100 machines made by CompuPro in the 80s. Two of them (with the 10PLUS & MP4 badge) have longer 18" S-100 cards. The CompuPro 286 uses standard length 10" cards, but they all run on 5v instead of the normal 12v. The machines have a mixture of 5.25"...

Thank you! I swapped the CPU out for an 8088/8085 board and I do see a 2Mhz SYNC on pin 76. So there does seem to be an issue with this 286. You answered another question I had about console output. I assumed there was a ROM on the disk1a that would spit something out before it tried to load...

I'm working on cleaning up my PET 2001 which at some point sustained some liquid damage inside the chassis and seems to have been stored in a humid environment generally. I thought about sanding and painting the spot inside the case, but I don't think it would look that great and I'd like to do...

I recently obtained some CompuPro stuff and I’m trying to get it running. It currently has a 286 CPU board. I see a good 2Mhz signal on pin 49 & 8Mhz on pin 24. I don’t see a SYNC on pin 76 however. Should that be running all the time? With a Disk 1A plugged in I see activity on pin 25 STVAL...

The drive in my disk imaging machine gave up the ghost, so I need a new one. Any known-working drive is fine with me, let me know your price shipped to 59601. Thanks!

Hello, I'm finishing a restoration on an Intertec Superbrain and am now looking to get some software on it. Just as an example, I'm trying to write Zork to a disk from this archive: http://www.retroarchive.org/cpm/games/games.htm My setup is a mid-2000s machine with a good floppy controller...

I picked up this PET locally the other day. It's a 2001-32N. I'm not familiar with the platform at all, so I'm trying to determine what this expansion does. It's from a company called Skyles Electric Works. Any help would be appreciated. It's location on the board:

Not exactly a rare request, but I'm new to the vintage computer marketplace and thought I'd put a feeler out to see if anyone has one for sale or knows where to find one. I'd like to find one with original documentation and software, but not required. Thanks!