[R-390] Mechanical Filter Repair

[Cecil Acuff]

Greetings,

        The 4 Kc filter is the most used filter in the radio from what I
understand.  One option is to contact Fair Radio sales and pick up another
used 4 Kc filter.  They should be able to test it for function before
shipping it so you should be able to get a working one.  The other option is
a new replacement...looks like you already have that info...

I have heard of guys getting them open to analyze the failure but I have not
heard of anyone having success in repairing one and getting it back
together.

Cecil...
----- Original Message ----- 
From: "Dennis Pharr" <dpharr53 at swbell.net>
To: <r-390 at mailman.qth.net>
Sent: Tuesday, August 17, 2004 2:40 PM
Subject: [R-390] Mechanical Filter Repair


I'm afraid I already know the answer to this, but does anyone know if it's
possible to repair the mechanical filters in the R390A?  I was listening to
my R390A EAC last night when the 4kc filter failed.

Before anyone asks, I had already replaced C553 before I powered up the unit
the first time, so that's not the problem.  All the other filters are
working OK.

I would appreciate any information anyone has on this.  I know replacement
filters are available, but the price seems a bit excessive ($175 ea.).

73,
Dennis Pharr
WD5JWY

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