[Elecraft] Question about 120 volts vs. 240 volts house supply to KPA 500

[Mike Maloney]

 Have you tried measuring the AC input voltage drop, no load versus key down max?  A Kil A Watt meter is a handy instrument to have for this.   My drop with 120V input is less than a volt with the KPA-500.I would say if drop is 2V or less, it is not worth the expense to have an electrician run a 240 volt line.  My AC line voltage runs an average of 122V on my 24/7 monitor.  
Mike  AC5P



    On Thursday, September 19, 2024 at 11:35:20 AM CDT, Bernie and Cheryl <hamdan at ix.netcom.com> wrote:  
 
 Dear Folks:

I have operated my KPA 500 off of a normal wall out let (120 volts) for 
years now and have gotten good service.  However, I've often wondered if 
there would be a definite advantage to getting 240 volt service into the 
shack, so that I could operate the amp off of that supply, as opposed to 
a normal wall outlet.  I recognize that there would be less current 
draw.  My question would be whether it would lessen the wear and tear on 
the amp if I switched to 240 volts?

Thanks and 73 de Bernie, KF0QS

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