Re: Does KPA1500 have these KPA500 characteristics?

Posted by Bill K9YEQ on May 25, 2018; 10:29pm
URL: http://elecraft.85.s1.nabble.com/Does-KPA1500-have-these-KPA500-characteristics-tp7641171p7641203.html

For those of us who can be slow:  operate as designed?  :-)

72 & 73,
Bill
K9YEQ
FT’er for K2, KX1, KX3, KXPA100,  KAT500, W2, etc.

-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of K9MA
Sent: Friday, May 25, 2018 11:36 AM
To: [hidden email]
Subject: Re: [Elecraft] Does KPA1500 have these KPA500 characteristics?

On 5/25/2018 09:15, ANDY DURBIN wrote:
> "The KPA500 actually runs cooler at just-below-fault power output than it does at either 500 or even 400 watts output."

That's to be expected of any class AB power amplifier.  The dissipation may actually be lowest when it is driven into saturation, not recommended for any mode except CW.  And even on CW, it could generate key clicks.

73,

Scott K9MA

--
Scott  K9MA

[hidden email]

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