{"product_id":"pc1-xt","title":"PC1-XT - ISA\/XT-adapter til Commodore PC-1","description":"\u003cdiv data-mce-fragment=\"1\" class=\"hidden-xs\" data-bind=\"css: { 'hidden-xs': !mobileReadMore() }\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe PC-1 was a very small PC clones made by Commodore, and hence it had no internal ISA\/XT ports (PC expansion ports) in case you wanted to add a sound card or the like to your computer. It did, however, have an external card edge connector at the back of the chassis, for which the pin-out was somewhat similar to the internal 8-bit expansion ports used by IBM on their machines at the time (later known as ISA ports), but there were still some differences.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe PC1-XT is an adapter which lets you connect one 8-bit XT\/ISA expansion card on the back of the PC-1. In theory, most XT\/ISA cards should work, as long as they are 8-bit (so not the longer 16-bit ISA connectors), and they don't use other voltages than +5V and\/or +12V. In fact, the PC-1's expansion port does not feature any voltage pins at all, but the PC1-XT adapter lets you \"steal\" some positive 5 and 12 volts supply from the computer's PSU, however the negative voltages (-5V, -12V) normally supplied by an XT\/ISA connector is not provided by the PC-1's power supply, and hence not by the PC1-XT.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eConfirmed to work with the PC1-XT is the XT-IDE expansion card from The Glitch Works which makes it possible to attach an IDE harddrive to an ISA\/XT expansion port. In fact, extending that setup with a CF-IDE converter makes it possible to use a Compact Flash memory card as a harddrive on the PC-1.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAlso confirmed to work with the PicoMEM by FreddyV, although I am looking to determine to which extent, if not fully.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/gitlab.com\/autumnhippo\/pc1-xt\"\u003eThis project on GitLab\u003c\/a\u003e, including assembly instructions.\u003c\/p\u003e\n\u003cp\u003eThis project was heavily inspired by \u003ca href=\"https:\/\/youtu.be\/CdsUfJHtgN0\"\u003eMIGs Yesterchips, episode #056\u003c\/a\u003e (link in German). Used with permission.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AutumnHippo","offers":[{"title":"Fully assembled","offer_id":47570268717397,"sku":"pc1xt-assembled","price":215.0,"currency_code":"DKK","in_stock":true},{"title":"Kit","offer_id":47814886195541,"sku":"pc1xt-kit","price":170.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/0231\/5315\/files\/assembled.jpg?v=1709412378","url":"https:\/\/autumnhippo.dk\/products\/pc1-xt","provider":"AutumnHippo","version":"1.0","type":"link"}