[R-390] Thanks and need a 4kHz filter

[Les Locklear]

The 4 kc filter is the one the Military and Government used the most, thus 
the one that fails soonest.

I would get one of the Kiwa Filter Modules and replace it with that. It has 
been written up in the HSN archives onlines and works very well, and the 
audio is much better than the mechanical filters.

Les
----- Original Message ----- 
From: "FISCH, MICHAEL" <mfisch at kent.edu>
To: <r-390 at mailman.qth.net>
Sent: Friday, February 01, 2008 11:51 AM
Subject: [R-390] Thanks and need a 4kHz filter


Dear All:

I finally got my R-390a up and running.  It looks like I could spend a long 
time fixing more stuff  (C551, AGC, better audio...), but I want to use it! 
I want to thank all of you for your help, comments and all the great stuff 
on the web.

The 4kHz filter in my IF is bad, and I'm not a watch maker so I really don't 
want to start to fix it and never get around to it.  Is there a good source 
for these filters?  Does anybody have one for sale...?  Also are the filters 
on American Trans-coil IFs generally good (i.e should I buy one for spare 
filters)?

Thanks again
Mike


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