[Elecraft] KPA1000

[Phil Wheeler]

The need for 220 VAC is a very good point, Ray.  
Operating from 110 VAC has always been a 
constraint for me, and likely for many of us. Of 
course, I'm less "serious" than some hams -- and 
since the mid 90s QRP has been a focus of mine.

I sure do like having the KPA/KAT500 duo and the 
ability to kick it on line by simply pressing the 
Operate button. My last amp, an AL-811H, was far 
more work to use and got little use as a result.

73, Phil W7OX

On 12/24/14 8:00 AM, Ray Sills wrote:
> Another consideration for a KPA1000, would be 
> the almost certain need for 220V power.  Fine 
> and dandy if it's already in the shack, but 
> certainly an extra cost.  Sure, you can run a 
> 1KW room heater from 110V... so what if the line 
> voltage sags to 100V on that circuit.. the 
> heater will just deliver a bit less heat.  Or my 
> vacuum cleaner (which draws 12 A) works fine on 
> about 110V.  But, a linear amp will want to see 
> a pretty stiff power supply to maintain linearity.
>
> 500 W is pretty much OK on household 110 V 
> branch circuits.  And, as others have pointed 
> out... the whole amp with power supply fits into 
> a K3 sized case.  Pretty slick engineering, I 
> say.  But, I'm a QRP guys, so all this 
> discussion is a theoretical item for me. :)
>
> 73 de Ray
> K2ULR
> KX3 #211
> ARL sixty one