• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

ive decided to wind my own 4:1 current. i use one from mfj right now and it works, but i want to wind my own. holy crap the differences in cores. 31 or 17 or 43.............im using an ocfd that covers 80-6 with very  acceptable swr so i dont need to use a tuner. which is what i wanted. but which core is best for this?