24 Hour Clock (CB6462E)

This circuit divides the grid 60 Hz frequency to obtain 20 Hz to drive mechanical watches used at the time. The circuit is from a 1970 CQ magazine.

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Frequency modulated crystal oscillator (CB9503E)
Found in American documentation, this crystal oscillator that can have harmonics in the FM range,...
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We found this digital CMOS circuit in a documentation from the 90s. The circuit generates signals...
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