I need a .50mH air core inductor for a speaker build and have a .55mH that I am trying to modify instead of buying a new one:

https://www.parts-express.com/pedocs...al-drawing.pdf

I found an equation for creating new inductors from scratch but haven’t been able to figure out how many times I should unravel the .55mH to reach .5mH. Is it even worth it? Any advice is appreciated!

https://www.parts-express.com/pedocs...al-drawing.pdf

I found an equation for creating new inductors from scratch but haven’t been able to figure out how many times I should unravel the .55mH to reach .5mH. Is it even worth it? Any advice is appreciated!

## Comment