Steven Shamlian Creator of Things

Buried in Minutiae


2010 Summer

Clock Three

This is a 74xx logic-based clock, built to test out a display idea. The digits are made of rows of LEDs, each of which edge-lights a numeral which has been etched onto a 3mm-thick piece of acrylic. Setting the clock is accomplished by actuating reed switches hidden in the case with a magnet.

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PDFS

Clock Three schematic orig

Clock Three schematic