[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Fw: Tesla List - Micro Wave Oven Transformers
Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
At 07:07 PM 1/4/2007, you wrote:
Original poster: "James Howells" <james@xxxxxxxxxxxxxxxxxxxxxxx>
Protected by <http://www.Spamjab.com>www.Spamjab.com
----- Original Message -----
From: <mailto:james@xxxxxxxxxxxxxxxxxxxxxxx>James Howells
Sent: Sunday, December 31, 2006 10:23 AM
Subject: Tesla List - Micro Wave Oven Transformers
Having seen your posting on TESLA LIST
I would be most grateful if you could explain something that puzzles
me about M.O.T's
I have dismantled 3 microwave ovens now and do not under stand what
the 6 turn secondary coil is for.
In all the ovens it has red high temperature insulation and seems to
put out about 3--6 .
Filament power for the cathode of the magnetron. In the usual
microwave oven, the magnetron (which is like a diode) has the anode
at ground potential (because it sticks into the waveguide) and the
cathode at high voltage. For what it's worth, this is pretty common
with microwave power tubes.. TWTs work the same way.
It needs a high voltage insulated winding (which is what that
insulation is about) because it's at 4kV or so, relative to ground.