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Yaesu FT-710 working with a LDG 200 ProII Do at your own risk, works with my setup. Not ideal, but its a work around until LDG release a interface cable. LDG Y-ACC control cable. The BLACK jack plug

Hi great news, Thanks for the update Thanks Dave

I forgot some history that might be confusing readers.? I found a bend in the RG-8X that was heating on the lower bands, replaced the coax and improved the cable routing.? The problem no longer

I have done some more investigating.? The problem only occurs on 10 meters,? The model I constructed for the antenna on Expert MININEC shows that the impedance presented to the tuner should be

I've been buying my "un" boxes at the hardware store. 4"x4"x2" boxes, and you can fit a 240 size ferrite in them easily. I also use one of those stepped drill bits from harbor freight to drill the

FT200-2 and Teflon coated 14 or 16 ga wire will solve his problem. Putting vent holes in the box will release the heat. They are easily found on EBay or Amazon. Here is a reference page:

Larry I agree. I used aluminum boxes for my projects. At the 100 watt level I always made KW versions of the transformers. This discussion got me to dig out my old Jerry Sevick “Transmission Line

Putting all of this in a hermetically sealed plastic box isn't helping either... Try a metal one so it can get rid of the heat. Glue some heatsinks to it or whatever it takes. There are better boxes

Just as an aside, I have a Palomar Engineers 9:1 setup with an inverted L. Five 16' ground radials, up 25' and the rest horizontal. I'm constantly amazed at how well it works. I push 1 KW into it. It

The core ferrite material is useless – it has a temperature at which its magnetic permeability changes permanently. You can read about this on the Fair Rite website in a core datasheet. Cheers Colin

The curie temp for type 43 ferrite material is 130 deg C. At this temperature the ferrite loses its magnetic properties. Judging from the appearance of that 9:1 it probably reached the curie temp and

I always use Teflon sleeving on my window gs. I couldn't tell by looking at the picture if the core had cracked. I assumed that's why you wanted to "repair" it. if it was electrically ok and just

Thanks for input! They wanted to repair it possibly all the memories of QSO and the fun of the day as a trophy or learning to repair. I think another was purchased! I also agree it would take more

Dave, Yes I think in this case the enameled wire is toasted. I would expect arcing and shorting of the windings. I think to damage the core you would have to run a lot more power to physically crack

Curious... Not too much experience with baluns... When they are like this is there a real necessity for replacement? What is the failure mode? windings burnt open or shorting? Some kind of damage to

Kelly Palomar has kits up to a kilowatt. Might fit in the old box or get a new box from the hardware store. 100 watts FT8 hours at a time requires a heavy duty UNUN.

thank you :) 73

Sorry about that ...the ferrite core FT114.

Earl, what is “them” can you confirm a mix / part? Or the sku for that $1.15 item kelly

digi-key has them for about $1.15