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Originally Posted by merlinmaxwell
Use Q13, it starts at Q0 so that is 14 in real money.
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Thanks - makes perfect sense now that I know it starts at Q0 - so that's pin 3 on the HEF4060BP!
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The datasheet gives the circuit for crystal use, a couple of caps and a resistor. If you run it from 5V (three 1.5V cells is good) it will drive a white LED directly, no resistor or transistor needed. Modern LEDs are very bright and the chip won't mind.
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The circuit I was working on runs from a 9V battery and includes a Darlington pair, several resistors and capacitors, including electrolytics, along with some diodes to prevent back voltage. Something based on this: -
Your solution sounds much simpler to the extent that I may build both just out of curiosity and my own further education.