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                                                    CCWN 75:4
                                                    
        The IF output is left "open" to the choice of the
builder. It may be necessary to whomp-up some suitable interface
circuitry in order to properly drive the T2L or CMOS circuits
which will be used for the CCW filter.

        This receiver should present no problems for the builder
who has a modicum of experience with solid state design methods.
However, if you are not really sure which end of a soldering iron
to grab, this might not be the best project to start with. All of
the bandpass filters were designed using the pre-distorted
normalized tables in Zverev's book, "Handbook of Filter
Synthesis". There is one area which could present manor Droblems
for the CCW experimenter which deserves careful attention. This
is the potential problems with spurious responses which could
arise due to having a system running near a great deal of high
speed digital circuitry. I would recommend that extensive
shielding and bypassing be employed as a start at minimizing
these problems.  Use scraps of double sided PC board to make RF
tight boxes to house circuitry, and watch the ground loops.

        Your comments and reports are welcome. Wes Hayward,
W7ZOI, 7700 SW Danielle Av, Beaverton, Oregon, 97005.