Re: KPA-500 "Output for Input" schedule?
Posted by
Don Wilhelm-4 on
May 11, 2011; 5:16pm
URL: http://elecraft.85.s1.nabble.com/KPA-500-Output-for-Input-schedule-tp6352735p6352766.html
Stan,
Of course it can be driven by lower power. The KPA500 is a linear
amplifier. If 40 watts in produces 500 out, then 20 in will give 250
out and 10 in will produce 125 watts. If the relationship is otherwise,
then it is not acting as a linear amplifier. The same thing should be
true for any linear amplifier - that is the definition of linear operation.
73,
Don W3FPR
On 5/11/2011 1:06 PM, stan levandowski wrote:
> The documentation on the Elecraft site says the KPA-500 requires 40
> watts drive for full output.
>
> Nowhere (at least not that I could find) is the minimum drive
> requirement specified nor is there any schedule of "output for input"
> such as 40 watts = 500 watts; xx watts = 250 watts, etc.
>
> More to the point -- can a K3/10 or a K2/10 be connected to the KPA-500
> and deliver something between 75 and 100 watts output?
>
>
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