[R-390] Line Filter and R390 IF strip

[Miguel Bravo]

In Spain and probably in all CEE countries the GFI is compulsory and once it
fired down and you only get a very small shock you love them.

But nobody tell you not to have more than one, so I had put one before any
of the breakers. It is expensive but each piece of home covered by a breaker
can have those 30 mA max. leakage before its GFI open.

If kitchen open its, the computer still work. And I can check a radio
without risk from those watching TV. You only need to push the check button
once a month or so if didn't get a shock in between.

Regards

Miguel Bravo


----- Original Message -----
From: "Bill Hawkins" <bill@iaxs.net>
To: <r-390@mailman.qth.net>
Sent: Thursday, April 03, 2003 1:07 AM
Subject: RE: [R-390] Line Filter and R390 IF strip


> Rodney Bunt said,
> "The bypass capacitors on the mains go leaky and you are fealing this."
>
> I say again, a bypass capacitor with infinite resistance (no leakage)
> will give the same tingle. There Is No Leak. Nothing is wrong, except
> that you, the operator, have not grounded the receiver. You did read
> the installation manual, right?
>
> A capacitor of 0.1 mfd has a reactance of 27K Ohms at 60 Hz. You will
> get the same tingle if you hold one end of a 27K Ohm resistor with a
> dry hand and touch the other end to a hot mains lead.
>
> There were no ground fault interrupters being made when the R-390 class
> of equipment was designed. Do Not Use A GFI. Rely instead on the good
> ground that you have used for the radio.
>
> But if the bloody GFI is built into the power entrance panel, then you
> must either use an isolation transformer or disconnect the filter. It
> will not help to replace the capacitors.
>
> Regards,
> Bill Hawkins
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