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[Amps] RF Chokes for the SB-220

To: <Amps@contesting.com>
Subject: [Amps] RF Chokes for the SB-220
From: "Robert Dorchuck W6VY" <w6vy@verizon.net>
Date: Fri, 10 Dec 2004 21:03:48 -0800
List-post: <mailto:amps@contesting.com>
I am trying to rebuild a SB-220 amp. I found what appears to be a resistor in place
of the RF choke on the grid of both tubes (RFC-4 and 5, 1 mh pi-wound). The color
coding is yellow-violet-black-red and it measures 47 ohms which almost matches the
color code.


Can anyone point me to a source for the correct choke or suggest a good replacement.
Any help appreciated.


Thanks.

Bob W6VY


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