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Teletype Model 19 - Part 1: A Teletype Arrives for Restoration

CuriousMarc · 33K views · 2018-07-06 · 7:26

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Overview

CuriousMarc inspects a newly arrived Teletype Model 19, an early military unit built around a Model 15 keyboard and printer, after an initial rough cleaning. It is the first part of a restoration series and touches on 5-bit Baudot code.

On Hacker News

HN commenters point to this restoration series as a thorough explanation of how teletypes work at every level.

Recommended by 2 HN people across 2 months · HN mentions 2019–2020

Topics

History of computingRepair, teardowns & right to repair
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teletypemodel 19baudotvintage hardwarerestoration

What people said

BinaryRage · 2020-07 · Recommendation

I was staggered by how much adjustment was required when watching CuriousMarc's excellent Model 19 restoration series, seems incredibly finicky. [VIDEO]

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dpedu · 2019-04 · Recommendation

CuriousMarc, a volunteer at the Computer History Museum, recently finished a video series restoring two Model 19 teletypes into working order. It's a long series but eventually explains how the devices work at all levels, and shows off some of the more niche features of the ttys. Well worth the watch. [VIDEO]

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lokedhs · 2020-04 · Reference

He has this playlist on the same channel where they restore the Model 19, and they explain in detail how the decoder works: [VIDEO]

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Sources

Video by CuriousMarc, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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