[R-390] Filters

[Cecil]

Kiwa makes some nice filter modules that are less expensive than the Collins mechanicals...we should look at those a bit closer as a viable option.  May be a bit of a challenge getting them 
packaged and mounted but it might be worth the trouble.

Cecil

Sent from my iPad

On Feb 15, 2013, at 8:18 PM, Jim Haynes <jhhaynes at earthlink.net> wrote:

> Rockwell-Collins still makes mechanical filters, but it's my understanding
> they use a different principle from the older ones, and also that the
> interface requirements are different.
> 
> I see by a web page that they make a low-cost series for use in 455 KHz
> IF circuits, with bandwidths of 300, 500, 2500, 5800, 7000 and 10000 Hz.
> Naturally they don't say what "low" means in cost.
> 
> jhhaynes at earthlink dot net
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