#ibmselectric#whiffletree#digital-to-analog
1.5M subscribers • 2 videos on Hallway
Beginner. No background in the topic needed.
1M views15 years ago4 recommendations
HardwareHistory and cultureRetro computingHistory of computing
Bill Hammack uses slow-motion video to explain the mechanical digital-to-analog converter inside the IBM Selectric typewriter.
Using slow motion video Bill Hammack, the engineer guy, shows how IBM's revolutionary "golf ball" typewriter works. He describes the marvelous completely mechanical digital-to-analogue converter that translates the discrete impulse of the keys to the rotation of the type element. (This is the typewriter featured on the television series Mad Men.)What people say. Highly recommended as a fascinating and clear explanation of the Selectric's mechanical whiffletree mechanism.
voxadamon Hacker News • Recommends
On “DIY IBM Selectric type balls give ’60s typewriters new life (and Comic Sans)”
dghugheson Hacker News • Recommends
On “Xerox Alto Restoration Part 2: Firing up the monitor [video]”
djmipson Hacker News • Recommends
On “Mechanical aircraft weight and balance computer using whippletrees”
golem14on Hacker News • Recommends
On “How to make your own Selectric Typeballs”
voxadamon Hacker News • Recommends
On “Comic Sans typeball designed to work with the IBM Selectric typewriters”
hwillison Hacker News • Mentions
On “Operation Gunman – how the Soviets bugged IBM typewriters (2015)”
pason Hacker News • Mentions
On “Will Kubernetes Collapse Under the Weight of Its Complexity?”
chiphon Hacker News • Mentions
On “A 1973 IBM Selectric typeball recorded dancers' body movements”