Do not use a chassis ground to connect any 120v neutral loads. Period.
Chassis ( connected to green or bare branch circuit wires) should only carry
fault currents NOT normal operating currents. Old Henry amps when switching
from 120 to 240 operation want a separate neutral connection requiring a
separate white wire that most 240v dedicated branch circuits don’t have. If
you have an old Henry, when switching to 240 without the required neutral
available you simply add a jumper to the terminal strip that ties the primaries
together to the terminal looking for the neutral. That makes everything happy
and is safe and legal. Do not ground that terminal looking for neutral! They
do not show this in the manual. If you have the neutral wire available by all
means use it but when not available the jumper to the primary jumper is the
thing to do.
Sent from the all new AOL app for iOS
On Wednesday, December 28, 2022, 7:46 PM, Jim <jimw7ry@gmail.com> wrote:
Oh... And bandwidth limits are SOOOOOO 1990s Bob... Top posting? Just
like everyone else does here?
Got it.
Thanks, 73, Jim W7RY
On 12/28/2022 6:30 PM, Robert W5AJ wrote:
> wonder who's read the list welcome message lately (click amps link at
> bottom of any of the messages)
>
> DO NOT USE THIS REFLECTOR TO POST COMPLAINTS, PERSONAL CRITICISMS OR
> ATTACKS, AND DISCUSSIONS OF LIST OPERATION, ETC. VIOLATORS OF THIS
> POLICY WILL BE REMOVED IMMEDIATELY WITHOUT NOTICE.
>
> Be considerate of other subscribers who have bandwidth limitations and
> edit posts for succinctness (include ONLY relevant excerpts of
> previous posts). NOTE: Top-posting complete previous messages are not
> allowed...please either edit relevant parts of prior messages or
> delete them entirely. When responding to a specific individual, think
> carefully before copying to the other 1100 of us on the reflector.
>
> Minimize noise, minimize bandwidth, maximize Amplifier information,
> act like gentlemen and enjoy!
>
>
> Please folks - Minimize noise!!
>
> 73
>
> On Wed, Dec 28, 2022 at 6:26 PM Jim <jimw7ry@gmail.com> wrote:
>
>
> Thanks, 73, Jim W7RY
>
> On 12/28/2022 5:29 PM, n4is@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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>
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