Re: K2: 8A Control Resistance 2.72 to 3.50 depending on R1
Posted by
Don Wilhelm-3 on
May 28, 2007; 1:40pm
URL: http://elecraft.85.s1.nabble.com/K2-8A-Control-Resistance-2-72-to-3-50-depending-on-R1-tp448215p448218.html
David,
You likely have the 4.7k value for RP6 installed which will lower the
resistance measured slightly. Apparently the 'nominal' resistance value
was not changed in the manual yet to account for the change in RP6 (it
used to be 5.1k).
You do not have a problem.
73,
Don W3FPR
David Woolley wrote:
> Hi,
>
> I've assembled the control board (and most of the front panel. In
> doing the control board resistance checks I've got an apparently out of
> range value for the 8A value. With R1 at the low resistance end of the
> track, it is 2k72, which is below the minimum of 3k0, in the manual.
> With R1 at the high resistance limit, it is 3k5. Do I have a problem?
> In particular, does the spread given in the manual account for the R1
> settings (I would have declared a pass if R1 had been set high enough
> initially).
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