In article .com,
"ZenSafari" wrote:

I am currently looking for a crystal filter in the CF range of 70 to
100MHz. I know that these are rare and are not standard for FM radio,
citizen's band, etc, but it would be most helpful for me to find one.
Ideally, the filter should have a passpand of +/-3.75kHz about the CF
(3dB). I've checked numerous manuf. who make these type of crystal
filters (FOX, ILSI, Raltron, MCF, etc) but most of their products are
vapor ware and have never been fabricated. Do any of you have a
suggestion of where I might find a filter that meets this spec? My goal
is to avoid another IF stage in my hardware

Chris-

I recall such a product from about 25 years ago, but for the 155-165 MHz
range and somewhat wider bandwidth. It was from:

PTI - Piezo Technology, Inc.
http://www.piezotech.com/
2525 Shader Road
Orlando, FL 32804 USA
Phone: 407-298-2000
Fax: 407-293-2979

It might be worth contacting them, in case they still make the filters,
and can make them for your frequencies and bandwidth.

73, Fred, K4DII