I had an antenna tuner here that would let the SWR drift when tuning up
and sometimes arc.
After all sorts of trial and error fixes, I finally loosened the lock
nut on the end of the tuning caps and tightened the screw. Eliminated
the problem and now all is good. The rotors were just too loose and not
making good contact. 73
Tom W7WHY
On 5/16/2015 12:44 PM, David Harmon wrote:
If the humidity is a bit higher than it should be....it might arc.
If you have air conditioning try turning it on to get rid of the humidity
and see what happens.
I had this very problem with a Collins 30L-1....I could breathe on the
tuning cap and it would arc.
Also....is there any dirt or foreign matter in between the cap blades and
stator?
Some folks allow their pets to sit on top of their equipment and hair etc
can fall in the equipment.
Once I found a staple that was shorting the tuning cap in a non-working amp
I bought for cheap....
73
David Harmon
K6XYZ
Sperry, OK
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