[Elecraft] K2 Won't power on

[JeremyJones]

Yes that was an Alkaline battery.  That makes me feel better about installing
the new finals once they arrive.  In the mean time I have a KAT100 and
KPA100 to build.

Jeremy


Don Wilhelm-4 wrote
> Jeremy,
> 
> That voltage is close to what I would expect from a new Lithium battery.
> If you are measuring an Alkaline battery, then your voltmeter is a bit 
> on the high side.
> 
> So if Alkaline battery, then your 0.65 measurement is likely OK, but if 
> that battery is a Lithium type, the bias is a bit high and you may have 
> to experiment with slightly different values at R60 to bring the bias 
> voltage down a bit.
> 
> 73,
> Don W3FPR
> 
> On 2/18/2014 6:58 PM, JeremyJones wrote:
>> A new AA battery right from the package is giving me 1.615V on the fluke
>> meter.  This is a newer K2 (#7405).  I had some issues when building it
>> which caused me to go through a couple of sets of PA finals before I had
>> to
>> send it to you to get sorted out.  It was working great until now, so
>> hopefully there isn't something residual that is creeping up now.  The
>> resistor values are all correct according to the manual.
>> R59 4.7k
>> R60 100
>> R61 120
>> R62 2.7k
>> R63 220
>>
>> I am performing the voltage measurement on the Base pad of where Q8 would
>> go, and pressing and holding the "Tune" button on the front of the radio.
>>
>>
> 
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