Herbert Graf wrote:

>Hello again,=20
>
>was wondering if anybody could point me at these two components:
>
>F4.5E
>T4.5C
>
>I believe the first is a 4.5MHz bandpass filter the other a notch
>filter.
>
>I've attached images if that helps.
>
>Thanks! TTYL
> =20
>
Herbert,
Here's some links for some general ceramic filter information:

http://www.token.com.tw/filter/index.html

http://www.murata.com/products/catalog/pdf/p11e.pdf     (has a writeup=20
on ceramic discriminators)

http://www.q-crystal.com/product/product_16.html

Do you by any chance have a sweep generator and scope handy that can=20
handle this frequency?  It's relatively simple to get the general =20
bandwidth of operation and filter type.

Bill
--=20
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