On 2013-02-23, at 5:19 PM, Bill Turner wrote:
> ORIGINAL MESSAGE:
> On Sat, 23 Feb 2013 10:01:55 -0500, Eddy wrote:
>
>> It absolutely gobsmacks me how some guys in this hobby would rather whip-out
>> the ol' VISA card & spend literally HUNDREDS on power amplifier tubes, when
>> the lowly ol' 813---paired with some twins, of course!---will do the job as
>> well, and at an absolute FRACTION of the price...
>
> REPLY:
> To get the plate dissipation of a single 8877 would take 12 813s.
>
> Would you put them all in a row? Or a matrix of 3x4? Or 6x2?
> Or maybe in a circle? Can't wait to hear. :-)
>
Hi Bill,
I am obviously missing something here: why would you want to maximize plate
DISSIPATION, anyway...?!
I grew up always believing that the first goal in ANY amplifier was the
maximizing of plate EFFICIENCY, a.k.a. OUTPUT.
Since when did the contest exchanges & participants on the Ham bands suddenly
take an interest in the plate dissipation of your amplifier tubes...? The
various exchanges wanna know your "power", & NOT your "plate dissipation"...
:o)
Besides, the cost of 12 brand new 813s would STILL be but a fraction of the
price of a new 8877...
~73~ de Eddy VE3CUI - VE3XZ
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