Here's a question from another angle:
Say I use two 8877's instead of one (with proper cooling and whatever
else is required) and run 1500W PEP output SSB, would the two tube
version run more hours than the single tube before output started to
degrade?
My guess is "probably not". Takers?
Thanks,
Jim, N7CXI
Bill, W6WRT wrote:
> ORIGINAL MESSAGE:
>
> On Fri, 4 Dec 2009 17:07:47 +0000 (UTC), Paul Decker <kg7hf@comcast.net>
> wrote:
>
>> One possible advantage of two tubes over a single tube is the blower and
>> airflow. Sometimes using two smaller tubes will require less airflow and
>> have less backpressure than a single tube.
>
> REPLY:
>
> Excellent point. It is a well known law of geometry that multiple small
> objects
> have larger surface area than a single object of the same total volume. It
> stands to reason that two smaller tubes will cool better than one large one,
> other factors being equal. Thanks.
>
> 73, Bill W6WRT
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