Hi Steve,
I converted an SB-220 to 6 meters for my friend Mike, UN8GC, and wrote up
the results in a QST article in April 2008. The input circuit I used was a
T-match. Each inductor consisted of 10 turns of #22 gauge enameled wire,
tuned with a 50 pf capacitor (which was mounted where the bandswitch used
to be. )
Have fun!
Steve Gilbert
K1SG
K1SG@AOL.com
774-292-1948
In a message dated 7/7/2015 12:23:19 P.M. Eastern Daylight Time,
amps-request@contesting.com writes:
Message: 3
Date: Tue, 07 Jul 2015 07:21:14 -0600
From: Steve London <n2icarrl@gmail.com>
To: amps@contesting.com
Subject: [Amps] SB-220 6 meter input network
Message-ID: <559BD24A.5070206@arrl.net>
Content-Type: text/plain; charset=utf-8; format=flowed
I am converting a previously-modified SB-220 to a 6 meter-only amp.
The original input pi-network is long gone. Most of the articles on
conversion say stuff like "remove N turns from the original 10 meter
input coil". Can anyone tell me component values for the 2 capacitors
and the inductor for a 6 meter input network ?
Thanks and 73,
Steve, N2IC
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