When you open it to dust it out - look carefully at the PC board between the
two HV wires from the transformer - there have been some random arcs
/tracking there - on mine they even added some Glyptal like black varnish on
those connections.
73 hank K7HP
----- Original Message -----
From: "Stuart Rohre" <rohre@arlut.utexas.edu>
To: <tentec@contesting.com>
Sent: Wednesday, June 09, 2010 12:39 PM
Subject: Re: [TenTec] Centurion 422B
I once had a low powered rig that developed such an arc over in standby,
and it turned out to be a burned out place in the potting of the high
voltage transformer winding. It would arc to the metal can in which the
transformer was potted. A cure suggested was to heat up the transformer
(removed from rig) on a hot plate to remelt the tar and then to test for
the fix.
But, usually, this symptom is dust accumulation within a linear upon
various insulated parts.
-Stuart Rohre
K5KVH
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