I believe Ive mentioned many times that operating WARC is best done in the
CW position with that amp and around 750-800W. The fan should also be kept
clean as well as the motor cleaned and lubed.
Clean any blackening off the socket connections.
Carl
KM1H
----- Original Message -----
From: "Pete Smith N4ZR" <n4zr@contesting.com>
To: <Amps@contesting.com>
Sent: Tuesday, May 01, 2012 5:37 PM
Subject: Re: [Amps] SWR increase on SB-220 input - my face is red
> Took a look inside the top of the SB-220, and sure enough - I've melted
> the filament out of the pins on the left-hand 3-500. No wonder the
> input SWR is off...
>
> 73, Pete N4ZR
> The World Contest Station Database, updated daily at
> www.conteststations.com
> The Reverse Beacon Network at http://reversebeacon.net, blog at
> reversebeacon.blogspot.com,
> spots at telnet.reversebeacon.net, port 7000 and
> arcluster.reversebeacon.net, port 7000
>
>
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