[Johnson] Valiant Tuning

[Glen Zook]

Do NOT ground one side of the AC line cord!  The third
wire should be grounded (the one that goes to the
"round" pin on the plug) but neither the "neutral"
(white wire) or the "hot" (black wire) should go to
ground.  You can bypass both of these to chassis
ground with suitable capacitors (at least 600 volt and
preferably 1 KV or higher), but do not connect the
neutral to the chassis!  The "neutral" should be
grounded only at the input from the power company's
line at your power meter.

As for the capacitors blowing:  That seems to happen
more and more every years.  Frankly, I just think that
the capacitors are giving up the ghost due to age!

For r.f. grounding tips, go to either of the websites
that I have listed at the end of this message.  I
routinely do seminars, etc., on lightning protection
and on r.f. grounding.  There are definitely other
methods of getting a good r.f. ground, but what I
recommend is inexpensive and definitely has been
proven in hundreds of commercial two-way, microwave,
and amateur installations.  There is the same synopsis
with some rudementary diagrams on both sites.

Glen, K9STH


--- skip <k3cc@fast.net> wrote:

The issue is that one side of the 110 V AC line is
grounded were years ago it may have floated.
 
My next round is changing the power cord and replacing
the cap's agn.  Then I'll find a gud ground and grd
the shack.  This will be a RF ground if possible.

=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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