Recent content by natevw

I picked up a spare 2716 EPROM (SGS M2716-1F1) and since I've been on a 6502 bent and recently repaired another chip in my PET Model 4016, I figured I'd try just dropping in a ROM and reading data off it. Nothing complicated like a true "option ROM" yet, just something like hiding a message for...

My original Tandy 1000 has an extended memory plus wall clock ISA card, board model T512CLK-A1 by "A.T.D. INC Sunnyvale, CA". On it is a part labelled ATD-20 Clock/Calendar, 20 Year Battery. Well it's been more than twenty years and the battery seems not to help it keep accurate time anymore...

Thanks for the tips. My stepper motor isn't quite as accessible since there's a sort of lever/cam attached to it which homes itself in something that looks like it's a sensor. But I did drip a few drops of Super Lube (PTFE oil) onto the shaft above. It does not appear to be stuck, at least...

I recently acquired a SuperCard Pro and have been using it to image a variety of TRS-80 and Tandy 1000 disks so far, some Atari ones next, etc. But I also have some Apple disks and am aware of the Applesauce FDC that is made specifically for those. As far as I can tell, the main difference is...

I have an original Tandy 1000 with a memory expansion board (reports 640KB on boot) as well as a "harcard". Need to take a closer look at the board for more markings, but the controller has a "WDC '85" chip on it and the drive is labelled as a MiniScribe (19 CYL, 3 HD, 3354 BYTE). I've read...

Hello, I am trying to get the disks working in a Model 3 which I bought from a friend as a child, and recently brought home from my parent's house. As a kid, I never had disks for it until a kind soul mailed me one all the way from Australia! Much to my disappointment at the time, I couldn't...