[K2] Update on the Availability of Legacy Rework Eliminator(TM) Accessories!

[Gary Hvizdak]

Nearly five years after Ken first announced our intention to offer a PCB
based K2 un-module headers kit, as of today we are no longer offering this
popular aftermarket accessory.  We will continue to offer our K2 Internal
Mic Adaptor (IMA) kit for another year or two, depending on how quickly our
inventory of circuit boards is depleted.  Likewise, we will continue to
maintain our website and documentation for at least that long.

For the moment we are still offering most of our duplicate K2 PCB parts
kits, although they will also be phased out once our current inventory is
gone.  Beyond enabling you to build a bare K2 so the options can be added
more easily, these parts are also required to add a used option to a K2 that
wasn't originally built "option ready".

73,
Gary  KI4GGX
webmaster http://www.unpcbs.com/

P.S.  Henceforth, if you want to build a K2 using our "option ready"
assembly method, we suggest you post a WTB message on the Reflector, in
order to locate a used set of our option bypass headers.  For more details,
please see http://www.unpcbs.com/faq/#legacy

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[Don Wilhelm-4]

I would also like to point out that those interested in installing Gary
and Ken's K2 PCB parts kits can very easily create their own
"un-modules" on perf-board.  Many of them consist of just a wire between
two pins of the header - the KNB2 un-module is the most complex because
it needs to be a -5 dB pad (3 resistors) - the KSB2 needs a .001 uF
capacitor and the J15 header needs a 4.7 pF capacitor.  Just review the
K2 schematics and the information on the un-pcb website and you should
be able to construct your own un-modules.

I use several of these "homebrew un-modules" when doing repairs.  The
Un-PCB modules are convenient for those wanting to assemble the K2 so
options can be added in the future, but I make my own in a smaller
profile so I can probe greater areas of the RF Board with them
installed.  Most of my modules are only a bit wider than the header
itself, but if your purposes are different than mine, you can vary from
my methods.

A note of caution - the headers for the KAF2/KDSP2 board on the K2
Control Board are not 0.10 inch center to center between the two headers
- that fact makes it difficult to use regular perfboard when
constructing an Un-module for these headers - the alternative is to use
two bent wires across the headers.

73,
Don W3FPR



Gary Hvizdak wrote:

> Nearly five years after Ken first announced our intention to offer a PCB
> based K2 un-module headers kit, as of today we are no longer offering this
> popular aftermarket accessory.  We will continue to offer our K2 Internal
> Mic Adaptor (IMA) kit for another year or two, depending on how quickly our
> inventory of circuit boards is depleted.  Likewise, we will continue to
> maintain our website and documentation for at least that long.
>
> For the moment we are still offering most of our duplicate K2 PCB parts
> kits, although they will also be phased out once our current inventory is
> gone.  Beyond enabling you to build a bare K2 so the options can be added
> more easily, these parts are also required to add a used option to a K2 that
> wasn't originally built "option ready".
>
> 73,
> Gary  KI4GGX
> webmaster http://www.unpcbs.com/
>
> P.S.  Henceforth, if you want to build a K2 using our "option ready"
> assembly method, we suggest you post a WTB message on the Reflector, in
> order to locate a used set of our option bypass headers.  For more details,
> please see http://www.unpcbs.com/faq/#legacy
>
>
>  

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[lstavenhagen]

But wouldn't that be the advantage of using Gary's RW eliminators - that you wouldn't have to make them yourself, or do any guesswork as far as dimensions, etc?

If I had planned on adding more features to my K2 in the future, the RW eliminators seemed like a good way to go for a very reasonable price. There was a cost in terms of having to work them into the build, sure, but otherwise they looked like good items to me.

I stopped at the NB and ant. tuner on my K2, but seems to me to be a good alternative if I had planned on going further with it.

JMO,

73,
LS
W5QD

[Don Wilhelm-4]

The point was that Gary and Ken have no more Un-PCB modules left.  So
now one either has to find them somewhere, or make their own or just not
bother and install the options as they are built.  Adding the options
later is not a difficult task at all - solder some headers in and
clip/unsolder jumpers for the most part.

73,
Don W3FPR

lstavenhagen wrote:
> But wouldn't that be the advantage of using Gary's RW eliminators - that you
> wouldn't have to make them yourself, or do any guesswork as far as
> dimensions, etc?
>
>  
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