HI All
I purchased a MFJ-898C roller inductor tuner that I got for a really
good price. It had a problem that it took a while to figure out.
It would tune an antenna at low power fine, but at high power, the SWR
would slowly creep up and not stay tuned right. I tried all sorts of
things to fix it like spraying the contacts with cleaner, etc.
Yesterday I happened to notice the roller inside the coil that contacts
the coil wire looked black and dirty. I sprayed it with contact cleaner
and took a real small screwdriver and cleaned the slot in the roller
where it contacts to the coil.
After cleaning it, it now works like it should and the SWR stays put,
even at high power with no arcing, etc.
Posted this because maybe someone else is having the same problem
No comments about MFJ stuff needed - I've heard 'em all :-) 73
Tom W7WHY
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