What type of strings to use for a fender F-50-12?

For a Fender F-50-12, which is a 12-string acoustic guitar, it's best to use light gauge or extra light gauge strings specifically designed for 12-string instruments. These typically range from .010 to .047 for light gauge sets. Brands like D'Addario, Martin, and Ernie Ball offer quality options that enhance playability and tone. Always consider the tuning and your playing style when selecting the string type.