[Amps] Amps Digest, Vol 151, Issue 6

K1SG at aol.com K1SG at aol.com
Tue Jul 7 13:55:56 EDT 2015


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 at AOL.com
774-292-1948  

 
In a message dated 7/7/2015 12:23:19 P.M. Eastern Daylight Time,  
amps-request at contesting.com writes:


Message: 3
Date: Tue, 07 Jul 2015 07:21:14 -0600
From:  Steve London <n2icarrl at gmail.com>
To: amps at contesting.com
Subject:  [Amps] SB-220 6 meter input network
Message-ID:  <559BD24A.5070206 at 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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