"Old Guy" ) writes:
Cuz they're in demand and no longer made. Pretty simple, really.

There was a review of a recent line of Rockwell/Collins mechanical
filters somewhere in the last years of "Communications Quarterly" so
I suspect they are still being made.

Collins mechanical filters were always costly. Surely some of it
is because they aren't simple to manufacture. They also supply
good performance. They were never a mass item, so there was nothing
to drive cost down as demand went up.

Note that commercially made crystal filters also carry a relatively
high price tag.

Michael VE2BVW

"Brian Hill" wrote in message
...
Why are they so expensive? I've put off buying some for my Collins rig
because of the price.


--

Regards
B.H.

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