[Amps] What to do about 'Neutral' in HB amp?

[Robert W5AJ]

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Please folks - Minimize noise!!

73

On Wed, Dec 28, 2022 at 6:26 PM Jim <jimw7ry at gmail.com> wrote:

>
> Thanks, 73, Jim W7RY
>
> On 12/28/2022 5:29 PM, n4is at comcast.net wrote:
> >
> > Whats a catch 22?
> >
> > You need to connect the Amp chassis to the AC neutral (wire connected to
> the
> > ground at the AC entrance), and you need to connect the Amp chassis to
> the
> > ground of the station, at same time, the  ground of the station need to
> be
> > connected to the AC ground at the entrance. All neutral wires must be
> > connected to only one point!
> >
> > You cannot do both at the same time.
> >
> > If you don't isolate the AC house ground from the station ground, also
> > neutral, because it is also connected at the AC entrance, you end up
> with a
> > UNSAFE ground. RF can flow to the house, EMF generate currents on both
> wires
> > and you want the current to the ground, not to your house. It is a mess.
>
> > Neutral or ground are two names for the same thing,
>
>
> Wrong. They are separate conductors, only being common at the primary
> service disconnect.
>
> I'm out...
>
> Jim W7RY
>
>
> >   a wire from the chassis
> > to a bar on the ground. But!  The functionality is different, neutral is
> for
> > human safety, ground wire is low impedance path to the actual ground. A
> long
> > ground wire for the station is a problem, 10 ft long can became an
> antenna
> > for 28 MHz, a long neutral wire is not a problems, it  works for safety,
> if
> > no current flow on it, no load.
> >
> > 73's
> > JC
> > N4IS
> >
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