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I recently had the incredible opportunity to be able to pick up a very complete Data General Nova system set. I went into this knowing essentially nothing and did as much research has I could before buying it and picking it up. What I ended up with are a 16 slot Nova 4/X and a 9 slot microNova...

I have a TRS-80 Model 4 (26-1069 Late Non-Gate Array) I picked up recently as a parts/as-is unit that had the floppy drives removed and was completely dead. After removing the line filter caps, reflowing the main power connector, replacing a shorted C401 on the CRT board, and resocketing all the...

Hello, I recently have designed an adpater for the PCjr that let's you use an ATX power supply on it rather than the 18VAC external that it *should* come with. My PCjr was found without the AC PSU after after seeing the scarcity and price of them on ebay I figured there had to be better way, so...

Yesterday I picked up an HP-86 from someone looking to give it a good home and now I'm starting the process of getting to know it. One thing I know is that I got a very complete setup: I got it with: HP 86A 64kB HP 82908A 64kB Memory Module HP 82900A CP/M System HP 82939A Serial Interface HP...

I've stumbled onto yet another computer and am trying to spec it up right now. I've got a Gateway 2000 Liberty laptop with a 486DX4-100. It's pretty jam'n. Unfortunately there seems to be very little information out there on these and definitely no parts available. I'm currently trying to give...

I've got a Commodore 8050 that works perfectly fine but the felt pad on drive 1 is scratching any disks I put in it. I've put two layers of painters tape under the catch that sets the height to help stop the scratching. This is a pretty lazy workaround and it still just barely scratches the...

The killer poke is a side effect of a workaround to increase draw speed on older model Commodore PETs. To summarize the problem, on early PETs an undocumented pin register was set low to disable waiting for the beam to return to the top left before accessing video memory. As Commodore made...

I really didn't plan on being a vintage computer collector. I was happy with my rather robust game console collection(Atari Jaguar anyone?). But then I was given an 800XE in part because it was like the 5200. Then I saw a VIC20 for $30 in box at a local store and thought it was too good to pass...