[Collins] S Line series 3, 2nd m8ixer mods

w9hak w9hak at insightbb.com
Tue Sep 4 09:10:57 EDT 2007


Gerald,

You peaked my interest when you mentioned modifications to the 2nd mixer 
to reduce noise. I use my 75S3 daily to chase dx with the signals many 
times 339 or lower. The unit is stock Collins, including the great 200 
cps filter, and I have done all the Dennis Brothers mods per his CD. The 
sensitivity is as good as it gets for this receiver. Therefore 
improvement is the s/n ratio caught my attention. Any information would 
be greatly appreciated.

Smith Bradford
W9HAK



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