[Yaesu] Mechanical vs. Crystal filters

[Hans Remeeus]

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 $0.02
> 
> 73  Bob  W7AVK
> 
> 
>