[Amps] SB-220 6 meter input network

Paul Baldock paul at paulbaldock.com
Tue Jul 7 11:51:19 EDT 2015


I used a 6" piece of home made 30Ohm coax from the tubes to the 
matching network. The pi network was 100pF trimmer on the input side, 
a 40pF trimmer on the output side and an aprox .16uH coil.

- Paul

At 06:21 AM 7/7/2015, Steve London wrote:
>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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