Large images of the clock backs.
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- Mon Jan 05, 2015 9:21 am
- Forum: Nuts & Volts Magazine Discussions
- Topic: January 2015 Arduino-based Master Clock
- Replies: 11
- Views: 6125
The article is great for the old IBM clocks running on 24VDC. Now we need an article on building a controller that injects signals onto the AC line for the clock shown below. I can't put my finger on the info as to what frequency the signals need to be. I have a book that shows the old tube circuit ...