> Um, linear with respect to power, or linear with respect to voltage?
Linear with respect to power. Both the input and output are fixed Z
thus an increase in drive results in increases in both the current
and voltage variation which given a linear amplifier causes increases
in both current and voltage swings at the output.
73,
... Joe, W4TV
On 5/11/2011 1:27 PM, James Maynard wrote:
> On 2011-05-11 10:16 AM, Don Wilhelm wrote:
>> 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
> Um, linear with respect to power, or linear with respect to voltage?
> Assuming a resistive load, P = I*I*R, or E*E/R. I *think* a "linear
> amplifier" means linear with respect to voltage (or current).
>
> If I'm wrong, I expect that I will be promptly corrected!
>
> Jim K7KK
>
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