---
title: "Sinclair QL to IBM PC/XT Case Conversion"
type: "article"
slug: "sinclair-ql-to-ibm-pc-xt-case-conversion"
url: "http://localhost/article/sinclair-ql-to-ibm-pc-xt-case-conversion/"
markdown_url: "http://localhost/article/sinclair-ql-to-ibm-pc-xt-case-conversion.md"
published_at: "2026-03-15T00:55:44+00:00"
modified_at: "2026-03-15T00:57:24+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Comprehensive step-by-step guide to housing the Sinclair QL motherboard and microdrives inside an IBM PC/XT case. Covers removing and separating the QL top cover and case, installing a PC power supply, custom-wiring a mechanical-key keyboard (with new J11/J12 plugs), making ribbon-cable keyboard and expansion extensions, mounting the microdrives in their cut-apart case section, and troubleshooting.…"
category:
  - name: "Timex Sinclair Users Group Mile High Chapter Newsletter"
    slug: "timex-sinclair-users-group-mile-high-chapter-newsletter"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/timex-sinclair-users-group-mile-high-chapter-newsletter/"
post_tag:
  - name: "Hardware project"
    slug: "hardware-project"
    taxonomy: "post_tag"
    url: "http://localhost/tag/hardware-project/"
  - name: "QL"
    slug: "ql"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ql/"
model:
  - name: "Sinclair QL"
    slug: "sinclair-ql"
    taxonomy: "model"
    url: "http://localhost/model/sinclair-ql/"
indiv:
  - name: "Roger Hunter"
    slug: "roger-hunter"
    taxonomy: "indiv"
    url: "http://localhost/indiv/roger-hunter/"
publication_r:
  id: 39264
  title: "Timex Sinclair Users Group Mile High Chapter Newsletter"
  type: "periodical"
  url: "http://localhost/periodical/timex-sinclair-users-group-mile-high-chapter-newsletter/"
authors_r:
  - name: "Roger Hunter"
    slug: "roger-hunter"
    taxonomy: "indiv"
    url: "http://localhost/indiv/roger-hunter/"
issues_articles:
  - id: 50282
    title: "Timex Sinclair Users Group Mile High Chapter Oct 1987"
    type: "issue"
    url: "http://localhost/issue/timex-sinclair-users-group-mile-high-chapter-oct-1987/"
pages: "2"
pubdate: "Oct 1987"
archive_link: false
---

# Sinclair QL to IBM PC/XT Case Conversion

Comprehensive step-by-step guide to housing the Sinclair QL motherboard and microdrives inside an IBM PC/XT case. Covers removing and separating the QL top cover and case, installing a PC power supply, custom-wiring a mechanical-key keyboard (with new J11/J12 plugs), making ribbon-cable keyboard and expansion extensions, mounting the microdrives in their cut-apart case section, and troubleshooting. Addresses heat, expansion space, and keyboard ergonomics. Includes a keyboard matrix wiring diagram and a commercial offer for kit parts and conversion services.