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

Re: power supply options

Original poster: "Scott Bogard" <teslas-intern@xxxxxxxxxxx>

Ok,
I sent a reply to this message, but never received it in my inbox, so I'll resend it. My MOTs are dying, and I have no clue why. I use mineral oil, and I float the cores on the outer MOTs (I have been using 6, but I had so many problems, I backed off to 4, and that worked fine until earlier tonight. The too biggest problems I think it might be, is insufficient filtering, or the fact that the transformers are just a foot and a half away from the primary coil (and may be having feedback induced in them). I have safety gaps, which don't fire since I installed my SRSG, and the filter consists of two 50 ohm ohmite resistors, filled with welding rods to add "inductance". There are also 3 strings of ceramic capacitors, 150pf from hot to hot (in front of the resistors) and 300pf from hot to ground (on both sides). I don't know if it actually does anything, and it may be the culprit. I don't know, but any input would be appreciated. 
Scott Bogard



From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: power supply options
Date: Mon, 23 Apr 2007 13:26:43 -0600

Original poster: "Jonathan Peakall" <jpeakall@xxxxxxxxxxxx>

Scott,

Why not attack the problem from a different angle? Why are your MOTs dying?
What can you do to stop it? Maybe you could tell us what you are doing that
kills MOTs and maybe the kind folks on this list can help you find a way to
use them in a manner that does what you want and doesn't wind up frying the
MOTs.

Jonathan
www.madlabs.info

----------------------------------------------------------------------
Some people are like a Slinky .. not really good for anything,
but you still can't help but smile when you shove them down the stairs.
----------------------------------------------------------------------
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, April 22, 2007 7:32 PM
Subject: power supply options


Original poster: "Scott Bogard" <teslas-intern@xxxxxxxxxxx>

Greetings all,
     Ok, I am on a students budget, so for now, a
pig is not an option (not even one of Dr.
Resonance's $125 pigs, I am chronically poor,
until I graduate, and get an engineering
job).  Right now I am using MOTs, which are free
(which is very good), and they put out lots of
power (which is also good) but they do indeed
occasionally burn out, and my supply is dwindling
faster than it is growing.  Can anybody give me
another (very cheap) option for a nice and beefy
HV power supply, in case I run out of MOTs before
I graduate in 2 yrs.  I suppose there probably is
no easy answer, but maybe somebody out there can
tell me something to look for (or where to look).
Thank ye kindly.
Scott Bogard.
P.S.  I have considered building a transformer,
but I think it is a little beyond my skill level
(and patience, winding stuff by hand for hours on
end drives me absolutely crazy).  Plus I don't
believe there is any good scrap yards near me, so
I would have to order wire and cores and stuff,
which I think would end up not saving me any
money in the long run.  Thanks again.

_________________________________________________________________
Don't quit your job ­ Take Classes Online and
Earn your Degree in 1 year. Start Today!
http://www.classesusa.com/clickcount.cfm?id=866146&goto=http%3A%2F%2Fwww.cla
ssesusa.com%2Ffeaturedschools%2Fonlinedegreesmp%2Fform-dyn1.html%3Fsplovr%3D
866144



_________________________________________________________________
Don?t quit your job ­ Take Classes Online and Earn your Degree in 1 year. Start Today! http://www.classesusa.com/clickcount.cfm?id=866146&goto=http%3A%2F%2Fwww.classesusa.com%2Ffeaturedschools%2Fonlinedegreesmp%2Fform-dyn1.html%3Fsplovr%3D866144