[Elecraft] KPA500 - key down current on CW

David Ferrington, M0XDF M0XDF at Alphadene.co.uk
Mon Nov 28 12:03:03 EST 2011


Thank you very much, just what I wanted to know.
73 de M0XDF
-- 
When a distinguished but elderly scientist states that something is possible he is almost certainly right. When he states that something is impossible, he is very probably wrong.
-Arthur C Clarke, science fiction writer (1917-2008)

On 28 Nov 2011, at 16:36, Jim Sheldon wrote:

> On my resonant Tribander with 1.2.1 SWR and the bargraph indicating 500W output, mine pulls 11.9 amps with the HV measuring 62.5 volts for a drain input power of 743.75 watts.  The amp is being run on a mains voltage of 240.  Drive power from the K3 indicates 28 watts.
> 
> Jim - W0EB
> 
>> Purely as a matter of interest, how much current does the KPA500
>> draw on CW key down?
>> 73 de M0XDF (K3 #174, P3 #108, KX3 #???)



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