Ken Shirriff on Twitter: "We finally fixed the 1960's IBM mag tape drive @ComputerHistory. Slack tape is held in vacuum columns, with pressure switches to sense the tape position. After probing resistor-transistor
Figure 7 from IBM 7340 hypertape drive | Semantic Scholar
729 Tape Unit Refresher
File:9-track-drive-open.jpg - Wikimedia Commons
PRODUCT DATA
IBM100 - Magnetic Tape Storage
9-track tape - Wikipedia
Tale of the tape: How IBM ushered in the age of digital storage | Storage CH Blog
MagTapeMedia.html
Innovations in the Design of Magnetic Tape Subsystems | Semantic Scholar
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Debugging the 1959 IBM 729 Vacuum Column Tape Drive at the Computer History Museum - YouTube
TU10 Tape Drive Repair Information
Retro Mainframe Computer Digital to Analog Shelf : 3 Steps - Instructables
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Tracking the history of magnetic tape: A game of noughts and crosses • The Register
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Ken Shirriff on Twitter: "An IBM 729 tape drive holds loops of tape in vacuum columns, allowing the tape to start and stop suddenly. One of the vacuum pumps @ComputerHistory failed and
