[Yaesu] Mechanical vs. Crystal filters

Thu Aug 17 12:32:08 EDT 2006

Hello Bob,
Those filters were excellent.
Times are changing... So do the filters... And their quality...
However; Inrad crystal filters still are of very high quality! I use 
them in my FT-1000D with excellent results.
73,
Hans Remeeus (PA1HR)
http://www.remeeus.eu
Communication is about people, the rest is technology.
Bob W7AVK schreef:
> Hanns - Not a guru on the subject but I seem to remember the 300 hz, CW 
> Collins filter in the 75S series receivers was not a mechanical unit but 
> a crystal unit.
>> Your differences make show how the the state of the art in filter design 
> has changed from the 1950s when the Collins unit was designed and 40 
> years later.
>> Just my 0ドル.02
>> 73 Bob W7AVK
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