Re: deceptive transformer

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

Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com> 

I seem to remember 90 hz being popular for AC b4 tesla invented his motors,
which needed the slower 60 hz. As for ferrite pigs...ever seen a Balun? Its
a transformer that works at HV HF to convert a balanced line to an
unbalanced line or vice a versa. Ferrite cores.

---Eric
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, April 04, 2004 12:57 PM
Subject: Re: deceptive transformer


 > Original poster: "Virtualgod" <mike.marcum-at-zoomtown-dot-com>
 >
 > Yup, makes them alot lighter with a higher operating freq. I'm surprised
 > they don't redesign the whole power grid for khz operation instead of 60hz
 > since that sems to be the trend (ferrite pigs anyone) ;)?.
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Saturday, April 03, 2004 8:04 PM
 > Subject: Re: deceptive transformer
 >
 >
 >  > Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>
 >  >
 >  > No, please dont say it's so! They even put switching psu's in MO's now?
 > Are
 >  > the magnetrons designed for the HF also?
 >  >
 >  > ---Eric
 >  > ----- Original Message -----
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > To: <tesla-at-pupman-dot-com>
 >  > Sent: Saturday, April 03, 2004 3:19 PM
 >  > Subject: Re: deceptive transformer
 >  >
 >  >
 >  >  > Original poster: "Virtualgod" <mike.marcum-at-zoomtown-dot-com>
 >  >  >
 >  >  > That's not gonna help the price either with mots going extinct.
Anyone
 > try
 >  >  > making a dc resonant coil with one of those inverter supplies yet?
Freq
 > is
 >  >  > probably way too high to make the usual ac coil practical (no 50,000
 > bps
 >  >  > caps to be found).
 >  >  > ----- Original Message -----
 >  >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  >  > To: <tesla-at-pupman-dot-com>
 >  >  > Sent: Saturday, April 03, 2004 12:11 PM
 >  >  > Subject: Re: deceptive transformer
 >  >  >
 >  >  >
 >  >  >  > Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net>
 >  >  >  >
 >  >  >  > Also, trash picking or consumer electronics dismantling  as well
as
 >  >  > storing,
 >  >  >  > packing, and shipping, takes time.  One does pay for convenience
 > and/or
 >  >  >  > time.
 >  >  >  >
 >  >  >  > Actually, though, the intriguing thing about the newer microwaves
is
 >  > the
 >  >  >  > inverter power supply!
 >  >  >  >
 >  >  >  > ----- Original Message -----
 >  >  >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  >  >  > To: <tesla-at-pupman-dot-com>
 >  >  >  > Sent: Wednesday, March 31, 2004 4:40 PM
 >  >  >  > Subject: RE: deceptive transformer
 >  >  >  >
 >  >  >  >
 >  >  >  >  > Original poster: "Steve Conner" <steve.conner-at-optosci-dot-com>
 >  >  >  >  >
 >  >  >  >  >  >66$ for a mot is cheap.  New MOTs are 80-100$ AFAIK
 >  >  >  >  >
 >  >  >  >  > Last time I looked, it was possible to buy a brand new
microwave
 >  > oven
 >  >  > for
 >  >  >  > 35
 >  >  >  >  > UK Pounds. That's about $52. In fact it's probably less, since
 >  > consumer
 >  >  >  >  > electronics are often "dollar for pound."
 >  >  >  >  >
 >  >  >  >  > Still, I don't blame (much) the seller for trying to make a
buck,
 > I
 >  >  > blame
 >  >  >  >  > the poor gimp who paid $66 for a transformer he could have
bought
 >  > brand
 >  >  >  > new
 >  >  >  >  > for $52, or trash-picked for free. Caveat emptor etc. It's not
 >  > really
 >  >  > any
 >  >  >  >  > worse than paying $100 for a pair of sneakers that cost $5 to
 >  >  > manufacture
 >  >  >  > in
 >  >  >  >  > Thailand...
 >  >  >  >  >
 >  >  >  >  > Steve C.
 >  >  >  >  >
 >  >