I know I'm dragging up an old thread here, but Google brought me here. That crystal... can it be any? Or a certain frequency?Gut a 1.5V battery wall or desk clock. The two coil outputs are 2-second interval pulses, 180° out of phase that are OR'ed for 1 second pulses. Very accurate! Some are on small PCBs. This one was on a metal frame that was cut down.
Ken
Nice. I go find me a spare clock I can hack.Why go to all the trouble of buying a crystal and constructing a crystal oscillator and divider, or programming an MCU with a crystal, when most of that in sitting right there in every 1.5VDC clock (Post #8)?
Ken
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