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Can I modify the TI Disk Controller to support 80 tracks?

April 26, 2017controller disk support TI tracks

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Can I modify the TI Disk Controller to support 80 tracks?

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Yes. There are two great sources of information to perform this modification and both are on Mainbyte.com. You can find information on the actual upgrade, including photos and diagrams at the following link: http://mainbyte.com/ti99/upgrade/upgrade.html. If you would like to perform the upgrade and want to purchase the EPROMS, you can get those from Bob Carmany.