[Elecraft] K2 low xmt audio revisited and REPAIRED!

[Deni]

Also I must say,

After building my K2 plus all options and experiencing NO problems at all I
do the A to B mods only to find my 'precious' and carefully built K2 is
'Stuffed Unstable and Wild'....worst nightmare!
I send an email to Gary asking where to look and he comes right back with
exactly where to look with the result I find the problem and fix it myself.
Wonderful!
K2 works beautifully again...

Many thanks,

73, Deni, GM3SKN


Subject: Re: [Elecraft] K2 low xmt audio revisited and REPAIRED!


> Just in case any reflector newcomers or onlookers are thinking this guy
> is just nuts with euphoria, let me second (and third) absolutely
> everything he says.  You're buying one heck of a lot more than just a
> top-notch kit with the Elecraft gear.  It's got an absolutely unique
> team standing behind it.
>
> dave belsley, w1euy
>
>
> On Jan 16, 2004, at 4:04 PM, DAVE HEALY wrote:
>
> > After building and installing the KSB2 adapter into my K2, I was
> > saddled with very weak transmit SSB audio.
> >
> > Only realized about 0.5 watts peak out (big whistle) with the tune
> > mode at 15 watts.
> >
> > The receive sounded fine, however.
> >
> > Gary Surrency of Elecraft worked with me for many, many days.  Each
> > day he'd give me his thoughts and each evening I explore them and
> > report back to him in the morning.
> >
> > If you haven't had the pleasure of working with Gary, let me tell you
> > that he is one astute and PATIENT guy.  He knows the K2 inside and
> > out.
> >
> > Anyway, we started with the mike (MH2) and worked our way through the
> > balanced modulator, ALC, speech compressor, BFO injection and the SSB
> > crystal filter.
> >
> > I had the K2 packaged up twice, ready to send it to Gary as I was out
> > of ideas and PATIENCE!
> >
> > He kept plugging away every day, try this, Dave....Try that,
> > Dave...This should do this, does it?
> >
> > So I unpacked it again yesterday and did an all-nighter.
> >
> > About 4:15AM I noticed that the voltages on the filter switching
> > diode, D13 were strange.  Got out the Hakko 808 (how did I ever live
> > without this beautiful piece of hardware?!) and changed D13.  No
> > better.
> >
> > Looked for voltages on D14, but they are not listed in the manual.
> > Since the 808 was hot, I changed D14.
> >
> > VOLA!  All was well with the world!  Everything works PERFECTLY!
> >
> > I just wanted to pass this along in case someone MAY have a similar
> > problem and to give my heartfelt thanks to Gary Surrency for his help.
> >  It was above-and-beyond what I've experienced with any other company.
> >
> > A thanks to Scott, also for rushing out parts to me.  He is another
> > great part of the Elecraft team.
> >
> > Wayne and Eric......You have an absolutely top-notch team.
> >
> > You can be proud of your product because it is without question, the
> > best.  But you can also be just as proud of you team, as they are the
> > cream of the crop.
> >
> > Thanks to all and 73,
> >
> > -dave-  N7DKK, Medford, Oregon
> >
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