[R-390] Filters

[Bob Camp]

Hi

One question worth asking:

Is there still a supply of IF decks out there? If so parting one out is a much better solution than cobbling something strange into the IF chain.

Bob


On Feb 15, 2013, at 9:46 PM, Cecil <chacuff at cableone.net> wrote:

> 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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