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Posts Tagged ‘magnetic logic’

Retro tech – magnetic logic

Thursday, December 27th, 2012

[embed]http://www.youtube.com/watch?v=p7SkE5pERtA[/embed] Jeri Ellsworth is facinated by retro computing technology. In her latest endeavor she's researched the principles behind magnetic core logic, a technology used to store data in the pre-transistor days. We'd have appreciated a close up of the device under test as well as the oscilloscope screen, but an...

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Posted in Videos, vintage | 12 Comments »

Recent Comments

  • Drone: So these go for around $330 USD and NO published calibration procedure online or otherwise? Given what's inside - I don't think I'll be considering...
  • Pekka Akselin: This is ridiculous!? :-) We are back at 256(!) byte EPROMs that needed multiple, a handful, of voltages to run! :-(
  • KH: Let's try a back-of-envelope calc balancing energies. From MCP1700 datasheet, there are graphs for a 200mA load step. Estimate the energy shortfall as 12uJ. Say...
  • Daniel: It's been a week and my comment is still awaiting moderation. Apparently the CIA doesn't want their involvement known?
  • KH: Agree, so okay, I guess he must have learned from somewhere. 100nF and 1000uF is so far apart, that was jarring; it's more magic incantation...