KG7PFS Posted June 15, 2022 Share Posted June 15, 2022 I have some experience with Sinclair computers, and I'm still interested in them even though I don't currently have one. I was looking up some sinclair hardware and noticed something strange. Sinclair sold a 512k (strangely labeled "0.5 Megabyte") RAM expantion that plugged in to the expantion slot. They also sold a third party disk system with their name on it. It plugged in to the expantion slot. If I get a QL, Sinclair RAM expantion, and Sinclair brand disk system, how do I use both? Quote Link to comment Share on other sites More sharing options...
KG7PFS Posted June 15, 2022 Author Share Posted June 15, 2022 OOps, this was supposed to go in the general Classic Computing section. How did I get in Apple? Moderator, can you move the post? If not, please delete it and I'll start over. Quote Link to comment Share on other sites More sharing options...
jltursan Posted June 20, 2022 Share Posted June 20, 2022 (edited) Not at the same time, that's why BITD appeared other third-party "combo" expansions with both FDD and RAM like the Trump Card You need an internal RAM expansion to free the side connector. Check this video to see some nice examples of how to upgrade internally a QL: Sinclair QL Upgrade Guide Edited June 20, 2022 by jltursan 1 Quote Link to comment Share on other sites More sharing options...
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