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26-3022: Difference between revisions
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the 26-3022 Mini-Disk System was the first production release of a disk controller/drive for the Color Computer. | the 26-3022 Mini-Disk System was the first production release of a disk controller/drive for the Color Computer. | ||
Revision as of 00:56, 7 February 2007
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This page was last updated on 02/7/2007. Total Pages: 751. Total Files: 999.
the 26-3022 Mini-Disk System was the first production release of a disk controller/drive for the Color Computer.
The controller is based on the WD1793. It features an analog data seperator section, and has multiple potentiometers which are used to calibrate various delay and timing features of the disk-side interface. It requires a 12 volt supply to operate, and is thus not compatible with a CoCo 2 or 3 unless a Multi-Pak Interface is used or the CoCo or controller are "hacked"
The disk drive is a Texas Peripherals unit encased in a silver-colored enclosure with a simple linear power supply. The drive is capable of accessing about 37 tracks, so a 35 track limit was imposed in Disk BASIC.
These drives are not the most robust, and many that are out there are probably in need of work. (if they work at all)
The 26-3022 controller is relatively easily modified to support high-density disk drives.
