[R-390] R-390A FL-101 Line Filter

[Todd Roberts via R-390]

Hi all,
One thing I did to fix the problem was to power an R-390A using an isolation transformer
with at least a 250VA rating. This kept the chassis "cool" and completely eliminated any
GFCI problems and negated having to change out the original line filter. I would 
recommend doing that for any R-390A. An easy fix.

73 Todd - WD4NGG
 
 
-----Original Message-----
From: rbethman <rbethman at comcast.net>
To: r-390 <r-390 at mailman.qth.net>
Sent: Thu, May 1, 2014 3:16 pm
Subject: Re: [R-390] R-390A FL-101 Line Filter


There was someone on the list that replaced this old filter that WILL 
trip a GFCI with an IEC, (Computer type) receptacle on the rear.

These are MUCH better than trying to simply replace a known issue with 
the same problem again.

IECs can be scavenged from any old computer power supply.  The only 
thing to look at making sure you take with it are the X Y Safety capacitors.

Bob - N0DGN


On 5/1/2014 2:32 PM, Larry Kirkland wrote:
> Just put a nice (but dead) Navy R-390A on the repair bench.  I found 
> that one leg of the powerline filter is open.  I've emailed Fair Radio 
> about a replacement.  To continue troubleshooting, I am going to wire 
> around the filter, but eventually need to replace it.
>
> Does anyone on the list have a spare or know where I might find one?
>
> Thanks,
> Larry W4LK

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