> On Sun, 06 Dec 2009 15:33:21 +0000, "K1TTT" <K1TTT@ARRL.NET> wrote:
>
>>Well, actually you could make some argument that running on 120v instead of
>>240v increases the I^2R losses in both the transformer and power line to the
>>amp. But I doubt that you would notice that in your electric bill without
>>careful testing.
>
> REPLY:
>
> Thanks for posting that, Dave, you beat me to it.
>
> Those guys on 40 meters are right. Other things being equal, for a given power
> output, running anything off 240 volts is more efficient than running it off
> 120, due to I-squared-R losses in the AC line. Whether or not that's what they
> had in mind is not known, but their conclusion was and is correct.
>
> 73, Bill W6WRT
The original discussion revolved around 120V costing twice as
much. That's a lot of I^2R!
Steve
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