I have used my KPA500 on both 110 and 240AC and I can honestly say that I
saw no difference in either supply voltage.
Mike va3mw
>
>
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Make sure the 120v line/outlet is not getting warm. Measure ac
voltage with amp off and then in keydown transmit to check voltage drop.
I don't have a KPA500 or KPA1500 but did have a 8877 with
4kV PS. It ran at 750ma which is 3000w dc load. That converts to
12.5A at 240v if PS is 100%
y"
Cc: elecraft@mailman.qth.net
Sent: Thursday December 13 2018 5:14:43AM
Subject: Re: [Elecraft] KPA500 AC power
Unless you are having a problem, save your money. I have two
KPA500’s, one
plugged into a 220V line at my main house and the other into a 110V
line at
my beach house and have nev
Unless you are having a problem, save your money. I have two KPA500’s, one
plugged into a 220V line at my main house and the other into a 110V line at
my beach house and have never seen a difference in performance. In
addition, on a number of contests Dx’peditions, were I have my K3s, KPA500
&
On 12/12/2018 4:44 PM, Jack Brindle via Elecraft wrote:
Noting that the current is double for 110V, the heat losses in the power line
will actually be quadrupled.
If you have #12 wire in your walls (the current NEC code), and use the supplied
power cord, things should be just fine.
That can
Thanks John,
I doubt it in this lifetime. I need SV/A and FR/G. I suppose I could rent a
station in New England and work the monk but that wouldn't be on my 120 VAC
circuit or from Tucson :-)
Wes N7WS
On 12/12/2018 7:22 PM, Macy monkeys wrote:
There you have it; DX is obviously better
There you have it; DX is obviously better on 120V! :)
Good luck on those last two, Wes!
John K7FD
> On Dec 12, 2018, at 6:17 PM, Wes Stewart wrote:
>
> I run my complete station on a 120V 20A circuit.
>
> Wes N7WS
>
> 9-band DXCC, need two for top of the Honor Roll.
>
>
>
>> On
Why not?
On 12/12/2018 6:05 PM, Nr4c wrote:
Lower current.
But why on this thread?
Sent from my iPhone
...nr4c. bill
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I run my complete station on a 120V 20A circuit.
Wes N7WS
9-band DXCC, need two for top of the Honor Roll.
On 12/12/2018 5:13 PM, Tom Berry wrote:
Is there any advantage to use 220 V over 110 V on the KPA500?
Is it worth having an electrician come to the house and install a 220 V outlet
Jack - great answer, many thanks for clearing it up for me. Our home was built
in ‘91 so I would guess that it is fairly up to current code, wire-wise. Guess
I’ll save my $600 for something else. Maybe a trip to the casinos in Tahoe! Or
paying some bills. Hm... :-)
Jim Bennett / W6JHB
Lower current.
But why on this thread?
Sent from my iPhone
...nr4c. bill
> On Dec 12, 2018, at 7:13 PM, Tom Berry wrote:
>
> Is there any advantage to use 220 V over 110 V on the KPA500?
>
> Is it worth having an electrician come to the house and install a 220 V
> outlet for it?
>
>
>
Depends. If you have a stiff 120 V service from the breaker panel, a
service that doesn't loop through other outlets, specially the ones that
use the push in the wire type connections, then the KPA500 will run OK
on 120 volts. If you have other stuff on that circuit, or have the
maximum
No, I have run mine both ways. Works FB on 120v
73 Eric WD6DBM
On Wed, Dec 12, 2018, 4:13 PM Tom Berry Is there any advantage to use 220 V over 110 V on the KPA500?
>
> Is it worth having an electrician come to the house and install a 220 V
> outlet for it?
>
>
> Thanks
>
> Tom AA4VV
>
>
>
Tom,
If you have a dedicated 120 volt receptacle in the shack, that would be
OK to use, but if it is shared with other receptacles in the house, you
will find blinking lights with CW or SSB speech.
If you have to run new wiring to the shack, run 240 volts and if you run
a 4 wire system, it
James;
There would be no difference in the heat generated inside the KPA500 since the
KPA’s transformer is delivering the same voltage and current in either case.
The entire difference would be voltage drop on the power line and KPA’s power
cord due to the higher current at 110V. The losses
Yes. The current draw when running at 220V will be half that needed for 110V,
which means the heat losses in the power cord and wall wiring will be cut by
about one-fourth. This also means the voltage drop on the power cord and wall
wiring will be much less at 220V.
So, there is a pretty good
Depends on your 120 V supply. I had good wiring, through a sub-panel
[an accident of previous construction] and it ran fine for me, no light
dimming. I also had 240 V available, but not located conveniently to
the KPA500. KPA1500 is probably something else again.
Now, here in Sparks, my
I’ve wondered the same thing here. While I don’t have the flashing lights that
Dennis NJ6G does, I DO have a ton of other things plugged in to outlets in
this room.
Am I off in left field on this: if the amp were to run on a 220 circuit it
would obviously draw half the current, and thus (to
Tom ...
I vote yes and did so myself. The amp just loafs along and probably prefers
that voltage. However, properly configured at the transformer, it runs fine on
120v which is what I power it when portable for Boy Scout events. At some
point you may want a 1500w amp which will definitely
Mine's plugged into 110. Someone could probably copy cw from the
flickering lights in my shack.
73, Dennis NJ6G
On 12/12/2018 16:13, Tom Berry wrote:
Is there any advantage to use 220 V over 110 V on the KPA500?
Is it worth having an electrician come to the house and install a 220
V outlet
Is there any advantage to use 220 V over 110 V on the KPA500?
Is it worth having an electrician come to the house and install a 220 V
outlet for it?
Thanks
Tom AA4VV
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Any advantage to using 220V vs 110V to power the KPA500?
I purchased both cables as I plan use the KPA500 in my RV as well as home
where I have 220 in the shack.
Thanks,
Bill - W0BBI
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Bill,
There will be less 'light blinking' if operated on 220 volts.
The answer all depends on the AC circuit. Is this a dedicated 120 volt
receptacle with heavy gauge wire? If so, it will make little
difference. But if it is a shared circuit, the voltage drop is a
consideration.
73,
Don
Don,
The 110V is a dedicated line.
Thanks so much for the quick reply.
73,
Thanks,
Bill - W0BBI
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