AC Motor Speed Controller using U2008B to 127 volts

[Claudemir2019]

I plan to build an engine speed controller, but in my city 127 volt power is provided.
http://www.electronics-lab.com/project/ac-motor-speed-controller-using-u2008b/
Is it possible to modify this project to 127 volts version?
This project would suit me perfectly!
Thankful!

 

[admin2]

According to the datasheet you can calculate the series resistance R1 using the formula below. This way you can use your desired voltage on the input. I don' t think you need to alter any other component.

 

[Claudemir2019]

Thank you very much

I will try.