Re: Back on the list after a few years

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Rob,

Welcome back :-)

Post to the Tesla list should be sent to:

tesla-at-pupman-dot-com

so you did it just right :-)

As you increase the voltage, the FET will tend to get hotter and hotter so
keep an eye on it.  Although your voltage is low, it sometimes helps to put
about a 50 ohm resistor in the gate lead to slow the FET just a little so
high current turn ons don't hurt it, but I think you are safe in any case
at low voltage.  Lots of people are experimenting with smaller FET coils
these days so you should have plenty of "advice" ;-)

You EM project is really neat too!

Cheers,

	Terry


At 08:56 AM 4/27/2002 -0700, you wrote:
>Hello everyone,
>
>Just wanted to make sure I got the right email address to send to.  I'm
>working on a very small test project, 8.25" of winding on a 1.25" form. 
>Resonates at 2Mhz and is driven by 15V with an IRFP150 MosFET and UC2710
>driver IC.  I get about 10kV :) :)  I don't think thats bad for such a
>small voltage and such a high freq.  My driver circuit consumes more
>current than the FET drain :)  But the FET is running very efficiently. 
>Barely gets warm.  I think I will try to bump it up to 30V today.
>
>It will be fun being back on the list.
>
>Rob N3FT
>
>ps. check out my personal web page.  It begs for a tesla FDTD Open
>Source sim program with 3d view of the fields.
>
>
>
>-- 
>-----------------------------
>The Numeric Python EM Project
>
>www.pythonemproject-dot-com
>