[Elecraft] Toroids and SSB board

[k6se@juno.com]

Steve, N1NB wrote:

"The toroid transformers T1 and T2 have 22 turns of red which are
supposed to occupy 80-90% of the core. It seems hard for me to wind them
short of almost 100% (but NOT overlapping) and still get a good fit with
the board."
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I didn't have this problem when I wound T1 & T2.  Make sure that the wire
passes through the core only 22 times and the winding is tight.  Also
make sure you don't have the larger cores for T1/T2 reversed with the
smaller cores for RFC1 & RFC2.

Also make sure you're using the #28 AWG red enameled wire supplied with
your KSB2 kit and not the #26 AWG red enameled wire that comes with the
K2 kit.

Anyway, you shouldn't allow the 22-turn winding on T1 & T2 have their
turns overlap.
==========

"The two rfcs are supposed to be mounted on the top of the board.  The
outline on the bottom shows a horizontal layout, but I can't see space on
the top for anything but a vertical mounting between RP1 and X3. is
vertical correct??"
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Yes, one of the toroidal RF chokes (on tiny cores) is mounted vertically
between RP1 and X3 and the other is mounted vertically between RP2 and
X5, both on top of the board.

73, de Earl, K6SE