[Elecraft] K1 switches - soldering the pins

Mon Mar 1 18:41:00 2004

Hi Kevin:
This is normal.  I'm presently in the process of building my second K1,  SN#
1806.  The pushbutton switches are the same on the K2's. Don't be alarmed
they will make contact as soon as you solder them. If the solder does not
flow all the way through and you are not comfortable after you solder them
you can always very carefully solder them on the top side of the board   I
have a small rechargeable IsoTip pencil iron that has a very fine tip that I
only use when I need to get in real tight places.  It allows me to get in
close with out damaging anything.  I also use a 3.5 x snap on lens in front
of my glasses, otherwise I couldn't begin to read the parts values or be
precise enough with my soldering.

Do make sure you install a jumper wire at RFC8 or else the (100 uh choke if
your building one of the filter  bands for 80 meters) otherwise when you get
to the bottom of page 30 you will not get the correct voltage readings at
the (4) Test Points at P1 and U3.  See the errata sheet,  note #2  (This can
throw you off if you don't install the jumper or the choke at RFC8.

Good Building my Friend!  73, Don / WA9TGT

----- Original Message ----- 
From: "Kevin Danks" <[email protected]>
To: "elecraft" <[email protected]>
Sent: Monday, March 01, 2004 5:18 PM
Subject: [Elecraft] K1 switches - soldering the pins

> I've just installed the switches on the control board of my K1. The pins
> were pretty short and there wasn't much poking through the board to
solder.
> In fact the ends of the pins were more or less flush with the under side
of
> the board, but I managed to get the tip of the iron on them and because
the
> holes were plated through this seems to have worked. I've done some
> continuity tests through the switches and they work OK.
>
> My question is, is this intentional, or are the switches in my K1 kit not
to
> the usual specification? Soldering them wasn't impossible, but it seemed
odd
> to have to 'bodge' the job like I did.
>
> Kevin Danks
> 50�49'N 1�43'W
> G0DBI <><><> www.novaforesta.org
>
>
>
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