[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: one component closer to first light



Original poster: "Scott Hanson by way of Terry Fritz <teslalist-at-qwest-dot-net>" <huil888-at-surfside-dot-net>

Chris -

I hate to be the bearer of bad news, but your use of plywood as a
"substrate" for your surface-mount R-C filter may pose a problem. Others
have tried this and eventually encountered difficulties with surface
tracking or arcing along the glue-lines between the plywood laminations. The
polyurethane coating is no good if the wood underneath carbonizes.You'd be
much better off using phenolic or even an inexpensive polyethylene cutting
board as a substrate. A 12" X 18" X 1/2" thick polyethylene cutting board
can be bought for less than $10.

Regards,
Scott Hanson


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, April 28, 2003 10:17 AM
Subject: one component closer to first light


 > Original poster: "Christopher \"CajunCoiler\" Mayeux by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <cajuncoiler-at-cox-dot-net>
 >
 > As of this morning (04/28), I am now one component closer to first
light...
 > I finally got the "terry filter" completed.  It looks like heck, but it's
 > done, and it's also within the realm of functional.
 >
 > Take a peek at...
 > http://members.cox-dot-net/cajuncoiler/Images/filter0001.jpg
 > http://members.cox-dot-net/cajuncoiler/Images/filter0003.jpg
 >
 > You're not seeing things... those white blobs are actual
 > hot-glue.  In case you hadn't guessed yet, I took surface
 > mount technology to the high voltage level... nothing you
 > see protrudes to the other side of the board.
 >
 > To top it all off, the whole thing, with the exception of
 > the power resistors, is covered with 7 shimmering coats of polyurethane
for
 > that "make it look nice, but ward off the lossy corona" look.
 >
 > In final coil construction, this board will be mounted on
 > top the NST, with an extra chunk of 2x12 glued in between.
 > (just to make sure)
 >
 > Now to start constructing the MMC... had the caps since
 > last month, and nowhere near enough time to get it all put
 > together in the timeframe I'd like.
 >
 > ...just thought I'd keep y'all up to date as to what's going on over in MY
 > lab... even if it IS unfolding
 > slowly, it's still unfolding.
 >
 > ---
 > Christopher 'CajunCoiler' Mayeux
 > http://www.cajuncoiler.tk
 >
 > Hate Osama BinLaden?
 > Visit http://www.moonosama.tk
 >
 >