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So, after a lot of investigation and thought, I have found that it really isn't feasible to make a 100% compatible super TRS-80 using an eZ80F91 as...

I have a tall tower 386 I got over summer 2020. It came with a barrel BIOS battery soldered to the motherboard. The battery was completely dead and...

Hi There, I'm working on a PET 2001-16B (2001N motherboard with "business" keyboard, "CBM 2001 Series" branding on the front label.) After a long...

I bought this on Amazon. It is a modern board that is supposed to allow vintage computers to use a CompactFlash card as a hard drive....

Hello, I have been trying to to reload the HD of my recently acquired Kaypro 10. This may be a Kaypro 1/ MTC by the parts it is built with. The...

I have an XT keyboard (DataComp DFK-700FI) which the LED blink during boot, but after that does not response with any key press, not even cap lock. I...

People might be interested to know that I've just merged in successful write support for those horrible 800kB disks to FluxEngine, my USB FDD...

I have an "oversized" physical hard drive, about 78 GB. I want to use it in a vintage computer with DOS 6.22. I'm not talking about using the whole...

I'm working on modifying a PC/AT to use a CF card as a removable solid state hard drive using an XT-IDE card. I want the card to be removable, so...

Hi, I have an AP8548 socket 7 motherboard (80486DX2-S CPU at 66Mhz), the keyboard no longer works. I can boot but the keyboard does not work. I...

Newegg has Western Digital Black 6TB hard drives on sale today for $169. This one is good for gamers and the reviews are positive. I bought one as...

The Holiday break has given me some quality time to spend on a single board computer using the IM6100 (actually Harris 6100.) Got the PCBs earlier...

I found this image in some vintage AIM 65 documentation. It is a video card that plugs directly onto the expansion connector. Does anybody know...

O my goodness gracious I've become obsessed! No I probably won't buy the dvd set, but I had been watching it as often as I could over the last week....

Now I have my Bytesaver working, I want to program its ROMs with 8K BASIC. My Bytesaver is sitting in an address window of 6000h to 7FFFh where I...

O.k. so having identified the 386SX motherboard here I set about getting it up and running. Booted up the system and got a CMOS battery low error. ...

Has there ever been a game or other program that took advantage of the long persistence of the P39 phosphor used in the IBM 5151 green screen...

I am doing research for another video project and found an old testimonial about Dr. Suding written by himself and posted to his website, which went...

All the DEC made boards in the LAB-8/E I am restoring have their IC pins bent presumably to keep them in place during assembly. The soldering looks...

I am curious as to what you guys think is the best lightweight word processor that runs on MS-DOS 3.3. Since this was before MS-DOS shipped with EDIT...

Vintage hard drive, WD-93044-A, 43 MB. I got this in a KHL 195 computer I was given a few days ago. I am booting from a floppy. The hard drive...

I've finally gotten another one of my "holy grail" systems, the original Compaq Deskpro 8086. This thread will be documenting the Deskpro as I build...

Hi folks, First off, happy new year. Cheers! Today's question is, I have 2 functioning Superbrains and to create disks for them I attach a...

I worked for many years before retiring for a UK DEC OEM and saved many Factory Manuals and Drawings from the skip in the 1970’s. I have finally...

Back in 1988 I purchased a Tandy 1000 SX that I upgraded with a NEC V20 CPU and a full 640K. Later that year I invested in a PC Technologies 286...

I bought a fully assembled SBC6120 with FP6120 and IOB6120. The IOB6120 has the "Battery Backup Fix Version 1". The system is partially functional,...

Hi! I'm wondering if the Composite/NTSC TV color artifacts, such as those on the Apple ][ or the IBM CGA, were intended by the engineers as it is or...

I have at least 2 model II computers without keyboards. Has anyone figured out the serial protocol yet and made a PS/2 adapter? I have a couple of...

Just picked up my first Amiga, a 2000, today and it definitely has issues. It apparently worked enough to get to the insert floppy screen a month or...

The PSU for one of my old PCs is dead. It's an AT PSU with 5v, 12v, -5v and -12v outputs. I'm thinking of adapting a relatively new ATX PSU and...