[Amps] KPA1500 Efficiency vs. RF-Kit B26

[Adrian]

Bill thanks for the link. I see 'Elecraft K4' highly emphasized in font 
size, reflects

perhaps your waiting time ?  What do you think, does the K4 meet 
expectation's ?

The amp probably uses a better quality quiet fans like Noctua etc ?

Does it have PC control to allow remote use ?


73


Adrian Fewster

On 14/7/21 10:28 pm, Bill Steffey NY9H wrote:
> been following this thread for a while...  still waiting to see a 
> comparison of KPA VS  RF-KIT .
>
> I do know MY RFkit is sitting directly in front of me in my 
> console...and makes some noise at FT8 800-1000 watts,, some , not even 
> a lot. On SSB I don't even hear the fans. The Huawai 3KW PS is 96% 
> efficient to start... The pallet has a VERY different heat sink 
> arrangement.
>
> bill ny9h/3                               console pix at qrz,com    
> https://www.qrz.com/lookup/ny9h
>
>
> On 7/13/2021 10:04 PM, john at kk9a.com wrote:
>> 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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