Because all modern houses in Arizona have central airconditioning, it is
necessary to have 200 amp services. I also know for a fact that the home
that I grew up in outside of Boston also had a 200 amp service. It may well
be that non-airconditioned homes back east don't have 200 amp services, but
I would think that they would. In any event, my example still holds.
Alan/KD7GC
Alan R. Downing
Phoenix, AZ
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of John Miller
Sent: Wednesday, February 26, 2014 6:46 PM
To: [log in to unmask]
Subject: Re: Big power
I don't know about your part of the country but I know of very few houses
with 200 amp service, I lived in one but other than that everywhere I've
lived was 100 amp service. It never was a problem until where I live now
where I know we push it in the summer but everything is electric here except
the heat. I plan to change that over time, as things fail but can't afford
to do it just for the fun of it as much as I'd like to.
----- Original Message -----
From: "Alan R. Downing" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, February 26, 2014 8:27 PM
Subject: Re: Big power
> Here is our example.
>
> Most modern homes have a 200 amp service at 240 volts. Lets assume that
> our
> amp will be limited to drawing 100 amps. Gross power would be 240 volts
> times 100 amps, giving 24 KW. Since an efficiency of 60% can be
> reasonably
> expected, we would realize about 14.4 thousand watts(14.4 KW) output from
> our theoretical SSB amp.
>
> If we permitted more than 100 amps draw, the output would increase
> proportionally. If we assume less than 100 amps, obviously our
> theoretical
> amp would produce less than 14.4 KW output proportionally.
>
> Any questions?
>
> Alan R. Downing
> Phoenix, AZ
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Ron Canazzi
> Sent: Wednesday, February 26, 2014 5:53 PM
> To: [log in to unmask]
> Subject: Re: Big power
>
> Hi Group,
>
> If you run that kind of power (was that a typo) 32, 000 watts? you would
> need a separate power plant wouldn't you?
>
> On 2/26/2014 2:36 PM, Scott Gillen wrote:
>> I'm afraid I just don't see the point running that much power.
>>
>> 73
>> Scott
>> ZL1CHM - N0HOK
>>
>> Sent from my iPhone
>>
>> On 27/02/2014, at 4:36 AM, "Alan R. Downing" <[log in to unmask]> wrote:
>>
>>> Hello again Kelvin, I could name you 25 stations in the US and in other
>>> countries too, that are operating with over 15 KW. Many of the really
>>> high-power stations are using custom built amps using the
>>> 4CX15000A(8281)
>>> ceramic tetrodes. I am told that these amps cost $32,000 in the
> auto-tune
>>> version, and $24,000 in manual tune.
>>>
>>>
>>>
>>> 73
>>>
>>> Alan/KD7GC
>>>
>>>
>>>
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