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RE: Line Filters...



Original poster: Thomas <tom-at-pwrcom-dot-com.au> 

The $10 ebay one doesn't look chunky enough to have decent sized series
inductors. It would be better than nothing though.

Plus they can be purchased for $2 here:

http://www.herbach-dot-com/Merchant2/merchant.mv?Screen=PROD&Store_Code=HAR&Prod
uct_Code=TM89FLR2822&Category_Code=PLF

I use one of these surge filters:
http://www.novaris-dot-com.au/products/powerline/specs/pp10-2f.html , but at AU
$100 ea they're not cheap (I built mine for free, as I work for the
company!). It has saved my other equipment once when I forgot to connect the
RF earth.

-----Original Message-----
From: Tesla list
To: tesla-at-pupman-dot-com
Sent: 28/01/04 12:43
Subject: Line Filters...

Original poster: Brett Miller <brmtesla2-at-yahoo-dot-com>

All,

I am preparing for an upcoming demonstration of my 6" system to the
local
amateur radio club.  The demo will likely take place at the building
housing the local 2 meter repeater and packet radio digipeater.
Naturally
this brings up the concern of ensuring that the coil is operated far
enough
away so that the e-field is clear of the aforementioned equipment and
that
proper line filters are in place.  As seen on my website, I have run the

720 watt coil (single 12/60 NST) indoors, about 30 feet away from my lab

(sporting 7 computers and plenty of test equipment and radios) with no
equipment failures or computer lockup.  Plus, rarely is TVI noticed on a

running television elsewhere in the house, and when present is quite
minimal.  I guess I should try "looking" at the line signal with a scope

while the coil is running to see what kind of parasitics show up.  In
the
meantime, I think I will invest in a line filter to use during the
demonstratio! n...if nothing else, to ease the mind of the repeater
trustees, etc.

I saw this line filter on ebay and was wondering if it would be suitable

for my 12/60 disruptive TC system.

<http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=2590510181&category=
7288>http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=2590510181&categ
ory=7288

-Brett
<http://www.hot-streamer-dot-com/brett>www.hot-streamer-dot-com/brett