KSB2 Capacitors

[John Heaviside]

Hi,

I have a KSB2 kit supplied about 11 months ago.  The instructions are Revision D.  I see there is a Revision E on the website.  The only difference appears to be the lettered capacitors CA, CB etc in the xtal filter which have changed in value.
Should I obtain caps of the revised value to fit or is the change associated with a change in the xtals spec?

Thanks in advance for any helpful suggestions.

John G3NYX.

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[Don Wilhelm-3]

John,

Those capacitor value changes will change the filter bandwidth from the
older 2.1 kHz bandwidth to the newer 2.3 kHz width - nothing but the
capacitors need be changed.  That is the only change (and it is equivalent
to the KI6WX filter bandwidth mod).  Yes, I do recommend it - unless you
want the slight increase in audio punch that the narrower bandwidth
provides, that may be important to you if most of your SSB operation is at
QRP levels.

73,
Don W3FPR

> -----Original Message-----
>
> I have a KSB2 kit supplied about 11 months ago.  The instructions
> are Revision D.  I see there is a Revision E on the website.  The
> only difference appears to be the lettered capacitors CA, CB etc
> in the xtal filter which have changed in value.
> Should I obtain caps of the revised value to fit or is the change
> associated with a change in the xtals spec?
>
>

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