[Elecraft] Let's Try This Again -- was "[K3] ... A 750 Hz, 8-Pole ... Filter?"

[Bill W4ZV]

Jim Brown-10 wrote:
> 
> The issue is that it's wider than than at the -3dB points. So the 
> problem appears to be that it's pretty difficult to build an 8-pole 250 
> Hz filter at 8.8 MHz, and that Inrad has given up on doing better. 
> 

Inrad currently offers an 8-pole 125 Hz at 5.7 MHz:

http://www.inrad.net/product.php?productid=179&cat=100

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