Here's a good place to start:
http://lists.contesting.com/archives//html/CQ-Contest/2012-03/msg00032.html
The 20 meter caps are 940 pf (pair of 470pf).
Dave Hachadorian, K6LL
Yuma, Arizona
-----Original Message-----
From: Amos, Ian
Sent: Saturday, March 24, 2012 9:57 AM
To: rtty@contesting.com
Subject: [RTTY] Need Repair advice on ICE 419b Band pass Filters
Hi All
I have 2 - ICE 419b Band pass Filters for my small SO2R station.
I have blown 2 of the filters in one of the boxes. Both 20 and
10 meters show infinite SWR on the analyzer all other bands are
ok. I have been doing research on the net and cannot find a
schematic anywhere, but have read a number of posts that say the
capacitors blow easily. I have done the sniff test and also
cannot see any sign of damage. I was wondering if anyone has a
schematic and / or could advise me on where to start.
Thanks in advance
Ian, VE3JI
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