John,
You can add the options in any order, and the desoldering is not
extensive for any of them.
The inexpensive kit that you refer to is the "Rework Eliminators", and
while beneficial to many, there is one shortcoming related to the K60XV
that you should be aware of. The Rework Eliminators would have you
change the value of C71 and set the K2 menu D19 parameter to ON. That
precludes you from finally setting the VCO voltages (voltages at R30)
until you actually install the K60XV. In other words, the K2 cannot be
fully tested for VCO voltages with the rework eliminators in place. Is
this a major problem? - yes, maybe, no. If you are aware of this
situation and follow the directions in the rework eliminator
instructions carefully, it will not be a problem - but this part of the
rework eliminators is not exactly 'plug and play' because you will have
to re-visit the R30 voltages again after you add the K60XV.
Other than that, enjoy the build. As I have stated, I do not believe
that adding the options later is any great deal (with or without the
rework eliminators) - the number of components to de-solder is quite
small for any particular option - just follow the instructions provided
by Elecraft.
Enjoy your Minnesota winter - I am quite happy here in North Carolina. :-)
73,
Don W3FPR
John Hoaglun wrote:
Hello,
I am getting ready to start my K2 project (after this weekend's VHF
contest is done.) I have the base K2 kit + KAT2, + KSB2 for my initial
build. I am planning to add a couple more pieces in the future (KIO2,
K160RX, K60XV.) I know that some people have used some sort of
inexpensive kit to allow to for the future upgrade path.
Are there any opinions one way or the other on that? My main concern
being any parts that I might need to desolder in the future if I don't
plan for the options now.
After building my XV222 (for this weekend's contest) I am looking
forward to starting the K2 project. The dead of winter has arrived in
Minnesota so it is a good time of year to melt some solder.
73
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