Recent content by OLD CS1

Apologies for the poor lighting in the images. FWIW, I found that battery holder on Mouser at the time. It is a very low-profile CR2032 holder with the pin spacing perfect for the Mini Memory board. I still have the cartridge in the photos and plan to take some better pictures when I get a...

The directory track for the 8250 will be track 39, half-way between 1 and 77. Standard Commodore DOS scheme. It sounds like you are in for some more in-depth troubleshooting. My experience goes no further than the 15x1 series' and working with drive mechanisms and sometimes a bad CIA. Good...

First thing to note is the 8250 is a 1MB drive. It formats 77 tracks per side on 100TPI disks, similar to the SFD-1001 drive. I expect this means you cannot use standard DSDD 5.25" disks, which are 48TPI, but I do not have working knowledge of this. Otherwise. Does the head move at all, or...

Check out Ray Carlsen's power supplies.

With the apparent uptick of telephony equipment in retro circles, including a couple of exhibits at this year's VCF-SE, I thought someone here might be interested in this. I have pulled the Redback SMS 1800 off our rack, which has not been in use since we switched from providing ADSL directly...

Since I exhibit at VCF-SE, I figured I should try not to be anti-social and get into the forums. I can be found on AtariAge, and generally no where else, but now I am here. My exhibit this year will again include "Dragon's Lair" for the TI-99/4A on a MDF-mounted broken-out system (to show...