Both caps can arc in some amps at legal power if the antenna VSWR is not
close to perfect.
Ive had to throttle back my LK-500C due to ice on antennas many times when
the VSWR was well over 3-4:1
AND, being a former contester I might inform you that a very high majority
run legal power. Peer pressure within and between contest clubs has
eliminated most of the super power amps.
Its primarily the strictly DXers and egocentric SSB crowd that are well over
the limit these days.
Carl
KM1H
----- Original Message -----
From: "Robert Kirkland" <alpha76@triton.net>
To: "amps" <amps@contesting.com>
Sent: Monday, July 21, 2008 9:55 AM
Subject: [Amps] Arcing in C1 and C2
> Roughly, under load, the rf voltage at c1 should be plate voltage times .9
> if this arcs the cap plate spacing is too small or the cap is damaged. If
> c2
> arcs the amp is not loaded properly, ck the antenna circuits. This,
> usually
> is correct for legal power, no experience with contest amps.
> Bob,w5pvr
>
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>
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