[Elecraft] K2: KPA100 fan issue + current question

[Don Wilhelm]

Jim,

That 11 amps would sound more reasonable to me if you can say that the 
base K2 is being powered separately, but I would expect something closer 
to 50% efficiency rather than 66%.

73,
Don W3FPR

On 11/9/2018 12:42 PM, Jim KO5V wrote:
> Thanks Bob,
> 
> That makes me feel a bit better. I'm still going to remeasure it with a newer meter and see if the measurements check.
> 
> 73, Jim KO5V
> 
> 
> -----Original Message-----
>> From: Bob McGraw K4TAX <rmcgraw at blomand.net>
>> Sent: Nov 9, 2018 10:29 AM
>> To: Jim KO5V <ko5v at earthlink.net>
>> Cc: Elecraft List <elecraft at mailman.qth.net>
>> Subject: Re: [Elecraft] K2: KPA100 fan issue + current question
>>
>> At 13.8 volts, 11amps is about 152 watts input. 100/152 = .658 * 100 for about 66% efficiency.
>>
>> All in all , looks about right to me. AKA - I wouldn't be concerned.
>>
>>
>> Bob, K4TAX
>>
>>