[Elecraft] K2 Won't power on

Don Wilhelm w3fpr at embarqmail.com
Tue Feb 18 19:17:01 EST 2014


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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