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by IBMJunkman
Mon Jan 05, 2015 9:21 am
Forum: Nuts & Volts Magazine Discussions
Topic: January 2015 Arduino-based Master Clock
Replies: 11
Views: 6019

January 2015 Arduino-based Master Clock

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 ...