See the photos of the current big Ameritron series. They use a big carbon
resistor that is in the parts list, sort of pricey however.
Carl
KM1H
----- Original Message -----
From: "Paul Christensen" <w9ac@arrl.net>
To: <amps@contesting.com>
Sent: Sunday, April 12, 2015 8:25 AM
Subject: [Amps] AL-1200 Glitch Resistor
I'm working on an AL-1200 for a friend. While finding the problem in the
PS, I noticed that a glitch resistor is absent in the design that would
otherwise limit HV fault current. I verified this on both the schematic
and by tracing actual amp wiring. I was expecting a resistor (e.g.,
50/50W) in the B- lead, or in the alternative, in the B+ lead with
appropriate isolation. While the 3CX1200 may be statistically immune to
flashover, it seems a good idea to include one to ensure that HV fault
current is limited under all conditions.
Has anyone here added one to their AL-1200?
Paul, W9AC
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