Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Showing posts with label
ibm1401
.
Show all posts
Showing posts with label
ibm1401
.
Show all posts
Repairing the card reader for a 1960s mainframe: cams, relays and a clutch
›
I recently helped repair the card reader for the Computer History Museum's vintage IBM 1401 mainframe. In the process, I learned a lot ...
7 comments:
An 8-tube module from a 1954 IBM mainframe examined: it's a key debouncer
›
IBM's vacuum tube computers of the 1950s were built from pluggable modules, each holding eight tubes and the associated components. I re...
15 comments:
Repairing a 1960s mainframe: Fixing the IBM 1401's core memory and power supply
›
A few weeks ago, I wanted to use one of the vintage IBM 1401 mainframe computers at the Computer History Museum, but the computer wasn't...
19 comments:
‹
›
Home
View web version
