🚀 go-pugleaf

About 10 or 15 years ago, I remember reading advertising literature from
a company called Wanlass.  They had invented a unique kind of transformer
and power supply (with the trademark of Paraformer or Parax?).  This
transformer was built differently than ordinary transformers, in that
one winding was rotated 90 degrees from another winding.  The literature
went into the theory of how this transformer utilized a "parametric"
term in the transformer equations, which in most other cases was ignored.
(If I'm not quite right on these details, it has been a long time since
I have seen the literature.)  The transformer was claimed to have
better regulation than other transformers.

Does anyone remember this company or have any of their literature?  This
is strictly a curiosity search to satisfy a discussion among my fellow
engineers.

I called a company which had bought the patent rights and the name
"Paraformer":  Adtech Power in Anaheim CA, but the engineer there said that
they had been bought and sold several times and that the paraformer
technology was "dead".  He didn't have any information on it.  I suppose
that todays switch-mode power supplies have eliminated the need for the
paraformer technology.

If anyone has any remembrances, experience or literature on this product,
I would appreciate hearing from you.  Please send E-mail since I don't
read this news group very often.  Thanks in advance.

Ron Speirs, Evans & Sutherland Computer Corp., Salt Lake City, Utah 84108 
            600 Komas Drive          (801)582-5847