[R-390] R-390A FL-101 repair/replacement...

[Larry H]

Hi Jordan,  I had to replace a filter on one, also.  You are right that
there should be on dc leakage to grnd from either side of the line.  I
decided to use a corcom to avoid the GFI tripping issue.  The one I used
was a 20VK1, as it fit nicely in the space and I only had to drill one 1/8"
mounting screw hole.  I used an existing hole for mounting the other end.
I attached a pic of it in place.

Regards, Larry


On Mon, May 2, 2022 at 11:01 AM Jordan Arndt <Outposter30 at shaw.ca> wrote:

>
> Hi group...
>
> I'm going to have to replace FL-101 in 2 receivers, and I'm considering
> installing those Corcom computer type line filters in their place.
>
> One has a broken solder connector on the B side of the filter output, and
> the one I was going to use to replace it shows both ~100uA leakage at
> ~200VDC and <10Meg of insulation resistance in both the A and B lines
> measured with my TO-6.
>
> I also tested the broken filter for comparison, and there is no DC leakage
> at all, and the insulation resistance is as near to infinite as I can
> measure on the TO-6.
>
> What is the recommended method to enlarge the opening in the rear panel to
> the necessary dimension..?
>
> Would a Dremel tool with a cutoff wheel work..?
>
> Any tips are greatly appreciated....!
>
> 73...Jordan VE6ZT
>
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