Re: {Collins} (no subject)



And, the series lamp idea is a great way to protect the *transformer*
against damage, once the caps have been reformed!

On Wed, Oct 25, 2017 at 6:11 PM, Francesco Ledda via Collins <
collins@xxxxxxxxxxxxx> wrote:

> Put a 200W lamp in series. It will protect the radio and the variac. As
> you crank up the variac, look at the lamp filament. As long as the bulb
> doesn't get bright, you are fine.
>
> Sent from my iPhone
>
> > On Oct 25, 2017, at 11:36, W6ph--- via Collins <collins@xxxxxxxxxxxxx>
> wrote:
> >
> > Put an appropriately rated fuse between the variac and the radio.  If
> > there is a direct short in the radio, the current going through the
> small wire
> > in the variac can burn out the winding.  Protect your variac.  Don't
> ask me
> > how I know.
> >
> > 73, Kurt W6PH
> >
> >
> > In a message dated 10/25/2017 8:51:28 A.M. Pacific Daylight Time,
> > collins@xxxxxxxxxxxxx writes:
> >
> > I'd  point out that, normally, most things don't start happening until
> you
> > get  to 100 volts -- and by then it may be too late. If you have a variac
> > that  measures current or some other ammeter that is always very  useful.
> >
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