[R-390] R-390A and GFI

[Bob Weiss]

The caps inside aren't necessarily leaky, just too large a value to allow
use with a GFCI.  A GFCI will trip with ~5mA of current to ground.

When rebuilding these filters, I use 0.01 uF XY rated ceramic caps, with
good results.

73,
Bob Weiss N2IXK

On Mon, Mar 25, 2024 at 6:11 PM Glenn Little WB4UIV <
glennmaillist at bellsouth.net> wrote:

> Replace the leaky capacitors in the filter.
> Use an isolation transformer and not ground the case (shock hazard).
>
> Glenn
> WB4UIV
>
> On 3/25/2024 12:58 PM, Jim wrote:
> > I'm in a new location and when I plugged in my R-390A it tripped the
> GFI's
> > in the room.
> > I see that there is a modification to the 390 AC filter, but time is
> short
> > and I would like to get it on the air.
> > Is there a simple way to keep the 390 tripping GFI's?
> >
> > TNX
> > Jim
> > WB2TPS
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> --
> -----------------------------------------------------------------------
> Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
> Amateur Callsign:  WB4UIVwb4uiv at arrl.net     AMSAT LM 2178
> QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
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> of the Amateur that holds the license"
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