[Elecraft] MD2 resistor mod - a different approach?

Tom Althoff althoff at verizon.net
Wed Nov 24 14:54:21 EST 2004


I just finished the mod.   Pins 5 and 6 go to plated through holes that
presented a perfect place to mount the resistor.   I cut the leads of the
resistor first before soldering so that they would not extend through to the
other side of the board.

I now have my new "on-sale" MD2 working and when the adaptor arrives for my
Heil ProPlus! I can just plug it in and talk (hmmm...assuming my voice is
loud enough to not need any messing with the AF gain in the SSB audio path).

Not having built my K2, it was a VERY impressive moment when I pulled the
front panel off after removing only 6 screws.  Wow...pull it off...push it
on...pull it off...push it on...COOL!  No interconnecting cables.   I love
the way this radio was engineered.   Every fits "just right".

Here's a pic of the way I mounted the resistor across pins 5 and 6.
http://www.k2ta.com/resistor.jpg

Thanks again to both Don and Walt for their help!

73 de Tom K2TA
K2 #1117-C

----- Original Message ----- 
From: "W3FPR - Don Wilhelm" <w3fpr at earthlink.net>
To: "Walter Wilson" <wewilson at knology.net>; "Tom Althoff"
<althoff at verizon.net>; "Elecraft" <elecraft at mailman.qth.net>
Sent: Wednesday, November 24, 2004 9:21 AM
Subject: Re: [Elecraft] MD2 resistor mod - a different approach?


> Walt and all,
>
> Thanks for that info - I should have checked the schematic before I opened
> my mouth (well fingers anyway).
>
> The jumper must be removed from the mic header.  Even though FUNC is not
> used in the K2, the front panel is wired so that it COULD be used (for
some
> future something).
>
> This also means that my statement about your mic being able to be used on
> another K2 is also incorrect.  -- but everything does work FB if you
remove
> the configuration jumper.
>
> 73,
> Don W3FPR
>
> ----- Original Message ----- 
> >
> > Thanks for sharing this simple, ingenious approach.  I did it this
> > morning.
> > The only thing I forgot to do the first time was to remove the jumper I
> > had
> > across FUNC/5, which kept the FUNC circuit tied to Pin 5.  It was
obvious
> > something was wrong, and I quickly realized I needed to remove that
> > jumper.
> > Works great now.
> >
>
>



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