RE: High voltage standing waves with a magnetron?

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Original poster: "Philip Chalk" <phil-at-apsecurity-dot-com.au> 



Frankly, I don't know enough about magnetrons to be authoritative, but I
would expect one to oscillate when fed from a current-limited supply of
the appropriate voltage.

I'm not suggesting it's simple, but it's certainly possible to build
such a supply."

	Simple enough - just a series resistor!  Note that the magnetron
volt/ampere curve is not like a Zener diode (battery in series with a
low-resistance diode, but that it also has a series resistance. I
couldn't find an oven magnetron characteristic data sheet in a Google
search but came up with a lot of hits on non-oven uses, primarily ham
radio.
	
Ed.


Hi Ed, all,

Granted, but it would have shocking regulation.  In order to limit the
current to the extent required, (using the normal MWO supply) most of
the voltage would appear across the resistor, & it would need to
dissipate several hundred watts.

I was thinking more along the lines of a voltage & current regulated
supply, or the normal MWO supply followed by a current regulator, or
constant-current source.  Your series resistor approximates a constant
current source, but with awful voltage regulation.

Phil Chalk.