[Elecraft] [K2] Control Board R20 bad value?

[Don Wilhelm]

  Pippo,

The exact value of R20 is not so critical, although all the datasheet 
typical applications use 2.7 ohms.  I would suggest that you  use the 
resistor supplied.

You may also want to check the accuracy of your DMM when measuring small 
resistance values.  Some meters provide for a zeroing adjustment to 
compensate for probe resistance.  A loose fitting probe could cause 
errors when measuring very low resistances.

As a sanity check for your meter, measure the 1/2 watt resistor on the 
RF Board resistor strip, it should measure close to 1.5 ohms.

73,
Don W3FPR

On 10/4/2010 7:58 AM, IZ2NYY wrote:
> Hy to all, installing the resistor R20 on the control board i checked, as usual, the value before soldering. It should have a value of 2.7 ohm with 5% tolarance, but the resistor in my kit is 3.2 ohm (the color code is respected for the 2.7 value). Could it be problem so that it's better i replace it with a more accurate value???
>
> Thanks for replies
>
> Pippo
> IZ2NYY
>