Here are such watches
Based on the integrated circuit LM3914, it is possible to design various LED indicators with a linear scale. The basis of the LM3914 is 10 comparators.
Here we will collect according to this scheme
To start, we take apart the clock, we remove all the insides
In the program, sprint layout made two boards, one for placing parts, the second for LEDs.
For LEDs
For the main board
Putting it all together and inserting LEDs
That's what it should be
I also bought this voltmeter to insert into the center
Next, insert into the body, the glass must first be tinted
In detail about the assembly on the video, who liked it and would like to assemble:
[media = https: //www.youtube.com/watch? v = DUAxUWXz3Jc]
All files for the assembly can be downloaded from the link: