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Old 26th Dec 2022, 1:21 am   #4
Bazz4CQJ
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Join Date: Apr 2009
Location: Oxfordshire, UK.
Posts: 4,934
Default Re: Full-Range IF Selectivity; The Hammarlund Variable Crystal Filter

Quote:
Originally Posted by Cruisin Marine View Post
I wonder if anyone has tried to reproduce this and test its viability?
Let's say that it was in every model of receiver they made between 1938 and 1960; I doubt if it could have lasted that long unless there was somthing to it. It seems that Hammarlund were in trouble by the late 50's and were taken over twice before finally disappearing, but lots of good companies had the same experience.

I will be building this, but recommend that you don't hold your breath waiting for me to complete it .

B
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