🚀 go-pugleaf

In article <1992Sep4.170956.6377@javelin.sim.es.com> RSPEIRS@130.187.170.178 (RON SPEIRS) writes:

>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

	Your memory is correct.  I have a manual here in my lap
for a Wanlass Paraformer model P1405 Parax.  Like a ferroresonant
transformer (and unlike a simple transformer), the output is 
regulated AC (circa 0.25% line regulation for 10% line variation,
and 1.5% load regulation, for load going from 0 to full rating).

        I'd call it closer to 20 years than ten; we have one,
and the instructions that came with it (the blueprint..rather,
blueline print...is dated 1967).  There's a one-page technical
summary in the manual, which gives the basic principles.

        We haven't used it in years; the power surge on startup
is excessive (it blows fuses) and possibly this indicates that the
capacitor has shorted...

        I can mail a copy of the manual to you, if you wish.

        John Whitmore

p.s. I tried E-mail, but my mailer doesn't accept the address,
nor any variant I could come up with.