I have revised the original file -
https://drive.google.com/file/d/0B_D41ceK5uSqM3VGa05BWXBhYkE/edit?usp=sharing
And I added a couple layouts for anyone wanting to make a series of these on a
6x9 sheet of copper clad - 2 files(front and back) -
I have been messing about with this board for a while, but have not had
success hooking it up the rig yet. I downloaded the schematic that Sean
produced ... nice job ... and made up a board using the laser toner method
described by K7QO. I did see one small issue with the board. The OUT label
is
The ground is not needed on the audio output line. If there was to be
one it would be connected to chassis ground, and that circuit already
has a chassis ground connection.
An Elecraft-wired mic won't use pin 5, so it's safe to leave the audio
out connected to pin 5 of the header.
73,
Dhoh!
I'll post up a revised version with the OUT label corrected. Thanks for letting
me know.
It's good to know that it works.
- Sean
On Jan 29, 2014, at 1:21 PM, Kevin Crossett kcross...@gmail.com wrote:
I have been messing about with this board for a while, but have not had
success
Kevin,
With the Elecraft pinout, pin 5 is defined as FUNC - which was never
implemented in the K2, so that is the choice for use as an unused mic pin.
Caution, there is circuitry connected to the FUNC input, so that must
remain isolated - in other words, if there is a jumper from FUNC to 5 on
Thanks for the advice everyone. Sean. I have only made the board. I have not
soldered anything to it yet, but it does look like the traces are correct. The
last time I did something with the audio out board, I messed up somewhere and
messed up the alignment on the radio. No worries though, Don
Hi Sean. I am looking forward to seeing the revised layout. I did something
similar several months ago, but my layout skills using pcbexpress were not
nearly as clean and sharp as your board. In the end, my transfer method
using an clothes iron left a lot to be desired. I also wasted a lot of
Hello All.
I’m a newbie here and about to embark on building a K2. One of the many uses I
have planned for the radio is to send emails over Winlink 2000 while at sea on
a sailboat.
I'd like to communicate with the SignaLink USB sound card through Winmor first
and then eventually with a PACTOR
Sean,
The circuit is simple enough to build on perfboard if you don't want to
go to the trouble of making a board. If you do make boards, you might
want to consider making additional board and offering them for sale.
There are occasional requests for those boards.
Build the version which
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