Just some notes I made on a napkin while researching this, and thought I should capture it somewhere.
FB-102 and FB-124 have 1/2″ holes which are the right size for RG-8 Coax.
- Mix 77 is better for 80/160 meters
- Mix 64 is better for the higher frequencies (10 meters and up?)
- Mix 43 is a good all-around general purpose mix
12 of the FB-77-1024 on a suitable length of RG-8 will have enough RF impedance along the outside of the shield to function as a good balun. Type 73 is actually recommended, but seemingly hard to find. Type 77 will work very well.
You’re welcome to share any additional pearls of wisdom with me on this subject by leaving a comment below. Otherwise, as I learn more about this subject, I’ll post my notes here.

