Great suggestions Don. I will do as you suggest: read the options'
literature and prepare myself for them while still preserving the
incremental approach as far as possible. Headers and push on jumpers
instead of wire jumpers are a sure bet. Thanks for the other suggestions.
I am sure I will need the group's wisdom to tackle some problem before long.
Thanks,
Raj
Don Wilhelm wrote:
Raj,
Since you appear to be relatively skilled based on your list of successful
projects, you could decipher the installation instructions for each of the
options and as a minimum, install the headers and use jumpers pushed into
the header pins instead of soldering the jumpers onto the K2 boards. I do
it that way most of the time during construction. The KNB2 requires
changing resistors on the RF board, but the K2 will work just fine if you
install the resistor and jumper as instructed in the KNB2 manual (just don't
do IP3 measurements without the 6dB pad in the KNB2 installed). C167 can be
inserted into the KSB2 header, and C6 can be inserted into the K60XV 3 pin
header. I recommend that you not install D19 and D20 nor change C71 to the
120 pf value until after you have completed the K2 without the K60XV
option - that will leave you with one capacitor (C71) to desolder.
One caveat - if you do not understand completely what to do and how to do
this, then build it step by step as instructed in the manual. There is not
really a lot of desoldering to be done when installing these options.
Your other possible path is to buy the 'Rework Eliminators' and follow their
instructions.
73,
Don W3FPR
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Rajiv Dewan, N2RD
Sent: Monday, June 26, 2006 4:17 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] (no subject)
Just arrived: K2 #5613 with KSB2, K160RX, K60XV, KNB2, KIO2, and
KDSP2 for use as IF rig for the four XVs (50, 144, 222, 432) that I
have already built. Since I plan to put these options in, is there
an optimal option build schedule? Will I have to undo work to put in
these options? I don't like de-soldering!
Any suggestions, ideas are welcome.
BTW, I am an avid kit builder / home brew enthusiast. My most
recently completed project is the N2PK VNA. Other than the XVs, I
have also built the DSP-10 2m rig, KA7EXP Power meter, IQ-VFO and
Binaural receiver combination, and many other projects.
Regards,
Raj, N2RD
--
Rajiv Dewan, N2RD
[EMAIL PROTECTED]
FN13fc
--
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