Re: Time for a PT power!!!

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

Original poster: "Christoph Bohr" <cb-at-luebke-lands.de> 

Kreso.

I do not have a PT but a very PT-like supply in use, so here are some
suggestions:

 > Anyone made a small coil with pt? in 6 inch secondary range?

I used this with my old 5" coild and it worked fine. But such a xformer
would be able to drive a bigger coil.
However, you can always ballast your transformer to a more moderate power
level and use it with any smaller sized coil as well.

 > Simple not
 > complicated rotarys,

You might go for a static gap mith massive airflow. Your PT can deliver a
lot of current that will try to stop the arc from extinguishing. So use an
airblast gap and again proper ballasting and maybe some resistors in series
with the charging circuit to somewhat reduce short crcuit current.

 > no expensive capacitorus ( until Terry finds me a
 > Maxwell ) and so on?

As many people did tell you in previous posts, just get yourself a MMC. If I
hand not bought my maxwell caps long ago I would definitely build an MMC.

 >Will i be able to use wire
 > for primary, its diameter is 2.7 mm!!

For the charging circuit it might work, but for a primary oscillating
circuit it is way too thin in my opinion.
you can use copper tubing 1/4" or bigger. This is pretty cheap and easy to
work with.

 > I can use any voltage with this PT all
 > until 20 kV so what is the best?

 >From my experience higher is better but that is not neccessarily true. After
all power increases as a function of square voltage. It depents a lot on
what your cap can handle. Just start with a small setting, you can increase
your input voltage later. The voltage alone will not affect tuning but will
put more stress on your components.

Best Regards

Christoph