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7x7 Kit worth replacing toroid cores, ballun core and installing silver mica caps?


 

Hi,

Have on order one of those ATU-100 "kits" from Amazon (Malahit ATU-100 7x7). I read where c1-c7 are ceramic instead of the original silver mica 500v and there was some concern expressed by at least one reviewer that this might impact max handling wattage.

Also wondering whether it is worth getting the "real deal" on the T68-2 and the ballun core from Kits and Parts.?

Will probably build "as is" but thinking about future mods. Any thoughts or experiences?

73
Mark
AJ6CU


 

I replaced both the toroids and caps, which made the thing quite a bit more expensive.

I wish I had just got the PCB and put all the parts on myself. As an example the UHF connectors you will get from China are carp.

I just finished mine and am having some issues with either RFI or doggy software they loaded on.


g4edg
 

Definitely worth replacing the caps....I had several of mine burn up during normal operation at 100w

Steve G4EDG?