[Elecraft] kpa1500?

[Joe Subich, W4TV]

 > And I suspect such an amp would want the higher line voltage.

It's not a matter of "wanting" a higher line voltage ... you simply
can't pull enough current through a typical 120V circuit to provide
enough power for a 1600W *output* amplifier.  Such an amplifier is
going to need about 4 KVA or around 35 A *average* and much higher
peaks even with a power factor corrected switching supply.  The
120V wiring in your shack is certainly not up to that level ... nor
are the breakers, circuit panel, etc.

73,

    ... Joe, W4TV


On 2014-12-12 9:19 PM, Phil Wheeler wrote:
> Other issues, too. For example, not all of us have 240 VAC available in
> our shacks -- at least I don't. And I suspect such an amp would want the
> higher line voltage.
>
> Phil W7OX
>
> On 12/12/14 6:06 PM, Phil Hystad wrote:
>> As others have mentioned, there were two amps built and put on display
>> a number of years
>> ago.  One was legal limit and I think the other was about half that (I
>> remember more than the
>> current 500 Watt KPA500 though).
>>
>> I probably would never spend the money for a full legal limit
>> solid-state amp but I might pay
>> for a kit amp.  By "kit" I mean more of a kit than typical of
>> Elecraft's bolt-together kits.   I mean
>> a real soldering kit with some SMTs already placed.  Especially useful
>> would be the PA boards and
>> heat sinks already put together.  But, other parts could certainly be
>> lower level kit pieces.  Also,
>> the voltage levels are not too dangerously high (? 75 volts, 40 amps
>> maybe).  Maybe the power
>> supply can be a separately priced kit.
>>
>> Not even sure how much I would pay -- I wouldn't want ham radio to cut
>> into my book buying budget
>> for the year.  Also, ham radio competes with my other hobby of wood
>> working.  Those Shapton glass
>> bottom sharpening stones are getting pricey.
>>
>> 73, phil, K7PEH
>>
>>> On Dec 12, 2014, at 4:58 PM, Richard Thorne <rthorne at rthorne.net> wrote:
>>>
>>> I'd be a buyer.
>>>
>>> Rich - N5ZC
>>>
>>> On 12/12/2014 6:17 PM, CenturyLink Customer wrote:
>>>> As a 6 month Elecrafter (k3+p3) I have never seen any discussion nor
>>>> requests for a legal limit compatible Elecraft amplifier with the
>>>> seamless attributes of the kpa500 . It would seem that the now
>>>> extablished 1000 w devices could form the basis for a commercially
>>>> viable amplifier. Perhaps no one else is interested, but I wanted to
>>>> ask if such a product is even on the "consideration" list?
>>>>
>>>>
>>>>
>>>> Myron
>>>>
>>>> W7LXN
>
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