[Amps] KPA1500 Efficiency vs. RF-Kit B26

[gudguyham]

That’s what we call it, jet engine mode!


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On Tuesday, July 13, 2021, 10:12 PM, Paul Baldock <paul at paulbaldock.com> wrote:

That should be a jet engine
________________________________
From: Paul Baldock <paul at paulbaldock.com>
Sent: Tuesday, July 13, 2021 7:11:11 PM
To: amps at contesting.com <amps at contesting.com>; john at kk9a.com <john at kk9a.com>
Subject: Re: [Amps] KPA1500 Efficiency vs. RF-Kit B26

Like a key engine
________________________________
From: Amps <amps-bounces at contesting.com> on behalf of john at kk9a.com <john at kk9a.com>
Sent: Tuesday, July 13, 2021 7:04:21 PM
To: amps at contesting.com <amps at contesting.com>
Subject: Re: [Amps] KPA1500 Efficiency vs. RF-Kit B26

And what is the KPA1500 fan noise level at 90°C?

John KK9A


VE7RF wrote:

<When I'm contesting on HF, always at 1.5kW, I've seen temps at 90 C, the
<fans run faster, I'm happy, and the amp is happy.
<73, Jim K9YC

##  90 deg C ?  wtf?
 90 deg C = 194 deg F !

##  Are u sure abt this ?  That's stupid for a LDMOS device.  What is
the ambient temp in the shack when this is  going on ?

Jim  VE7RF

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