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Sponsored by PCBWay: https://pcbway.com/g/ynWgss The Toshiba T5200 wasn’t just another PC clone — it was Toshiba’s idea of a portable workstation. Launched in 1989, this luggable packed a 386 processor, bright orange plasma screen, and expansion slots into a machine aimed at professionals. Prices started around $9,000, and Toshiba even offered OS/2 and their elusive UNIX variant, T/PIX. In this episode, I take a closer look at the T5200/100, which arrived with a faulty floppy drive. A simple swap wasn’t possible — Toshiba used a proprietary 26-pin connector. So I built a custom cable and added a small hardware mod to bring it back to life. Along the way, we’ll explore its unusual RAM slots and even an MS-DOS 4 install. In this episode: 00:00 Intro 00:53 Toshiba T5200 Retrospective 04:18 T7200's Proprietary RAM Modules 05:10 Building a 26-pin to 34-pin Floppy Drive Adapter 07:04 720K Or 1.44M Mode - Why Not Both? 09:26 Conclusion 🔔 Subscribe for more retro hardware adventures! Want to join THE PHINTAGE SUPPORTERS or THE PHINTAGE ENTHUSIASTS community and get a mention in an upcoming video? Learn more here: https://www.youtube.com/@THEPHINTAGECOLLECTOR/join This video was made possible with support by: THE PHINTAGE ENTHUSIASTS: Alisha Manuela Stutz Christian Zerrahn David Schell Waseem al sammane ZyeByteVT THE PHINTAGE SUPPORTERS: Balint Szy Brian Repinski Cecil Clank Elinars Feldi GrayT! heyday478 HMK Jack Beckman Jack Rosenthal John DiLiberto Luke Granger-Brown Matthew Veety Mlok Karel MS-DOS Manfred Steven Glogger Thorstens Time Capsule Tim Hull Wobinu Films xcalibur839 Z098 Zen the Fox Visit also THE PHINTAGE COLLECTOR website at https://www.thephintagecollector.ch for insights into my retro computer collection. This presentation, Copyright @ 2025 THE PHINTAGE COLLECTOR, Gianpaolo Del Matto. All rights reserved. Individual Copyrights apply for referenced material (see sources). Music composed by 🎶 Abdallah El-Ghannam https://www.youtube.com/@AcrossTheU.S.A | https://www.fiverr.com/abdallahghannam 🎶 rootkitty | https://soundcloud.com/rootkitty ℹ️ References & Further Reading: Manuals & Official Docs: - Toshiba T5200 Maintenance Manual (minuszerodegrees) https://www.minuszerodegrees.net/manuals/Toshiba/Other/Toshiba%20T5200%20-%20Maintenance%20Manual.pdf (see esp. page B-6) - Toshiba T5200 and T5200C Summary Sheet (minuszerodegrees) https://www.minuszerodegrees.net/manuals/Toshiba/Other/Toshiba%20T5200%20and%20T5200C%20-%20Summary.pdf - Toshiba Diagnostics Overview (minuszerodegrees) https://minuszerodegrees.net/manuals/Toshiba/Diagnostics/Toshiba_diagnostics.htm Drivers, Utilities & Software Archives: - Toshiba Drivers, Utilities & Manuals Collection (archive.org) https://archive.org/details/toshiba_drivers_utilities_and_manuals_collection - Toshiba 5200 Collection (archive.org) https://archive.org/details/toshiba_5200 - Retrospace Utilities Archive (search “T5200” → TEST3.EXE diagnostics) https://www.retrospace.net/infoseiten/download.php?action=keyword - General archive search: Toshiba T5200 (archive.org) https://archive.org/search?query=toshiba+t5200 Community Discussions & Repairs: - VCFED Forum: T5200/100 problem https://forum.vcfed.org/index.php?threads/toshiba-t5200-100-problem.59485/ - DOSReloaded Forum: T5200/100 https://dosreloaded.de/forum/thread/719-toshiba-t5200-100/ - VCFED Forum: Floppy not working on T5200 https://forum.vcfed.org/index.php?threads/floppy-not-working-toshiba-t5200.63003/ - VCFED Forum: Dead HDD, possible dead floppy https://forum.vcfed.org/index.php?threads/toshiba-t5200-dead-hdd-possible-dead-floppy.35489/ Technical Resources, Mods & Hacks: - GitHub: Toshiba T5200 project (docs, floppy info, BIOS, mods) https://github.com/SpitFire-666/Toshiba-T5200 - Vogons: External floppy discussion (A/B/PRT switch, BIOS quirks) https://www.vogons.org/viewtopic.php?t=57998 - Vogons: Floppy cabling hack (26-pin to 34-pin adapter wiring) https://www.vogons.org/viewtopic.php?p=642629#p642629 General Info & History: - ClassicBits: Toshiba T5200 overview https://classicbits.net/vintage-computing/toshiba/t5200/ - Toshiba retro site (Swedish mirror/archive) https://toshiba.retropc.se/ - Your Computer (Dec 1988) — Toshiba T5100/T5200 coverage (archive.org) https://archive.org/details/1988.12-your-computer-december-1988/page/74/mode/2up?view=theater Media & Commercials: - 1990 Australian Toshiba Laptop Commercial https://www.youtube.com/watch?v=PPWLVBK-W3Y - Computer Chronices - New Laptop Generations (05/09/1989) https://www.youtube.com/watch?v=zRCBepOHaYk