[Elecraft] Re: K2/SSB Construction

[Geoffrey Mackenzie-Kennedy]

In my humble opinion you are 100% correct. RFC1 and 2 are a very tight fit
when all other components are mounted properly. I believe that they used to
be on the bottom of the PCB, but were moved to the top for very good
reasons. I wonder whether some Plumbers' Teflon Tape (the thin white stuff)
put around crystals X3 and X5 during installation would help prevent shorts
between choke and crystal can.

73,
Geoff    GM4ESD

----- Original Message -----
From: "PA3GYU" <pa3gyu at amsat.org>
To: <elecraft at mailman.qth.net>
Sent: Tuesday, March 01, 2005 9:31 AM
Subject: [Elecraft] Re: K2/SSB Construction


>
> >Any thoughts will be appreciated.  Thanks for the help.
>
> A while back, I reported this on the KSB2. Allthough some reactions
> suggested I must have put in the resistor packs tilted, I'm certain they
> are straight. Also, some other people reported the chokes *are* a tight
> fight. Your mileage may very.
>
> ----begin old message---
>
> Maybe it's just me, but I found RFC1 and RFC2 on the KSB2 to be very tight
> fits. They are both quite stuck between the crystal and resistor pack.
That
> would normally not be a problem, but allthough the manual says to 'try to
> avoid scrapping the wire', one of my RFC's apparently did not come through
> unscraped. After mounting and checking for continuity, I had the good
sense
> to check for a short to the crystal can and Bingo! Shorted!
>
> I might have made some more room, if the manual had warned that the
crystal
> and the resistor pack should have been soldered as far away from eachother
> as possible. I'm not sure, as this is my first KSB2. I'd rather not start
> messing with them now they are already in there.
>
> ----end old message---
>
> Good luck!
>
> Bart de PA3GYU
>