Ci,
Very little has been changed in the KSB2 board but some folks did change
some resistors around, so I would recommend that you download the KSB2
manual from the Elecraft site and compare all the resistors and capacitors
(particularly C38) with your board. Look especially for changes in the ALC
area - this may be a very early board and have the old values in that area
(the C38 value should tell you) - if you need those ALC parts, Elecraft has
a kit of them - 'PSK31 mod for the KSB2' or something similar to that.
The headers that are to be installed on the RF board will need to be added
as well as the components on your Front Panel Board - the KSB2 manual has
all the information you should need for ordering the extra parts (don't
forget the mounting standoff, screws and lockwashers) and installing the
KSB2.
A new set of crystals will produce a filter with a flatter passband, and if
you want to change the bandwidth (your board is the older narrow 2.1 kHz
width), do it while changing the crystals just because it is easier that
way.
If you have the KPA100 or the K60XV in your K2 you will want to update the
firmware (yours is version 1.02).
That is about all the help I can be short of saying that I would do all of
that just in case, but the choice is yours - you said your interest was
mainly CW!
73,
Don W3FPR
> -----Original Message-----
>
> I just got a bargain KSB2 for my K2 (#4615). It was delivered to
> the seller
> 12/5/99. Do I need to make any changes before I install it in my K2. Any
> advice will be appreciated. U1 has the following numbers on it -
> PIC16C72 - 04/SP
> and 9852HAN, Also it has a little tag hand written saying SSB
> 102. I don't
> plan to use anything but CW, but thought it should be something I
> should have,
> and the price was right. Thanks, Ci
>
> Ci Jones (K2 - 4615, K1 - 933, KX1 - 957)
> WU7R
> FISTS 10789
> NAQCC 306
>
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