I'm planning to use a little higher value trimmer, so I would be
able to be more or less in a second. I let you know wich one I use...
I would like the really smaller one (in size) that it can take not
much space as the actual resistor.
Le 05-07-24 à 09:03, W3FPR - Don Wilhelm a écrit :
Folks,
After thinking about this voltmeter 'adjustment' a bit more, I
discovered I
had erred. The value of R10 should be INCREASED to make the
reading higher.
Sorry - I guess I had a 'senior moment' and got my head turned
around wrong.
73,
Don W3FPR
-----Original Message-----
Jean-Francois,
You certainly could do that - it should not alter any other
function that I
am aware of. The current display can be trimmed by changing
Control Board
R7.
R10 and R7 are 1% resistors, and that provides repeaability from
one K2 to
another - one could hand-pick from 5% resistors just as well.
I personally would be concerned about leaving a trimmeer in place
because of
the possibility of the setting being changed, but certainly using
a trimmer
to determine the exact value required would be an easy method.
73,
Don W3FPR
-----Original Message-----
Hi Don,
You said : "By lowering the value of R10 ..." Could I just put a
trimmer near that value instead of R10 and tune the trimmer so that
the voltage displayed match more closer the real external
voltage ???
And could I do limilar thing with the current display ???
I don't want to be more catholic than the Pope, but is it
possible to
do those mods ???
Best 73 from a junior ;-)
Le 05-07-23 à 18:56, W3FPR - Don Wilhelm a écrit :
Steve,
Although some have been confused by the readings at first, I don't
see any
advantage in modifying the internal voltmeter to read the external
supply
voltage - what it reads is the actual voltage the K2 is operating
at - but
if changing it is your choice, by all means do it - it should be a
simple
task of padding R10 (or lowering its value a bit).
======
Jean-François Ménard / VA2VYZ
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======
Jean-François Ménard / VA2VYZ
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