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A digital clock made only with discrete transistors, diodes and resistors, no integrated circuits. This clock uses 550 switching diodes and 196 transistors to divide 60 Hz power line frequency down to one pulse per second and provide a display of hours, minutes and
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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The following pages on the
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I, the copyright holder of this work, hereby publish it under the following license:
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Click on a date/time to view the file as it appeared at that time.
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Creative
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83:(2,096 × 2,696 pixels, file size: 898 KB, MIME type:
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Commons is a freely licensed media file repository.
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
