Posts

Date: 2022-10-14

  • Macintosh 512K Repair

    I picked up this Macintosh 512K on a daytrip to Oregon to pick up a few TRS-80 Color Computers for prices fair enough to justify the reasonably short drive. The seller is a vintage computer enthusiast with a sizable collection of PCs and early computers who is trying to downsize. Everything I purchased is known…

  • HP 64000 Emulation System Demonstration

    Here’s a video I made demonstrating the editor, assembler, linker, and emulator packages for the HP 64000 configured for emulating a Motorola 6809 microprocessor. In the video, the process of assembling and linking source code is shown as well the resulting output. Next, the emulation package is started, and the emulated system executes the code…

  • Apple ][+ Repair

    I acquired this Apple ][+ in a retro tech lot that I didn’t anticipate buying when I met the seller for the Asus P2B-D motherboard I’d agreed to buy. It had obviously been abused by a previous owner. Note the missing keycaps, broken key stem for what should be the escape key, missing lid &…