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Sunday, February 12, 2023

on video useful power supply for a wall clock

 


 a very good battery for the wall clock. I have been using it in my watch for a year. If you also want to put this circuit in your watch, then follow the instructions. 

You will need:

(1) 5V power supply .. I used an old phone-charger .. these can be readily found at any thrift store
(2) 22uF caps rated for 10V or better
(3) silicon diodes .. I used 1N4936 because it's what I had lying around .. but most any silicon diode will do .. the forward voltage drop will vary slightly for different diode types, but this circuit is fairly tolerant of small voltage differences.
(1) 1K resistor .. the power rating doesn't matter much, the resistor will only need to handle milliwatts of power

 


 a very good battery for the wall clock. I have been using it in my watch for a year. If you also want to put this circuit in your watch, then follow the instructions. 

You will need:

(1) 5V power supply .. I used an old phone-charger .. these can be readily found at any thrift store
(2) 22uF caps rated for 10V or better
(3) silicon diodes .. I used 1N4936 because it's what I had lying around .. but most any silicon diode will do .. the forward voltage drop will vary slightly for different diode types, but this circuit is fairly tolerant of small voltage differences.
(1) 1K resistor .. the power rating doesn't matter much, the resistor will only need to handle milliwatts of power

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