12V Magnatron

The pain is in designing the power supply.

i can buy a 120 v microwave and run it through an invertor, but are micrcowave ovens designed for travel traliers have a built-in invertor or do they have specially designed transformers?

Of course you can run a microwave oven from an inverter. There should be no problem, provided the output is sine-wave.

i don't think you understood my question. please re-read

You are right. I had misunderstood your question. Exactly, what are you looking for? Can you give a link to your earlier related post?

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A microwave is gonna look silly on the roof of yer car!

Dont bother. Microwave oven magetrons work in a different frequency band than the microwave based radar guns use.

By the time the cop is close enough for your jammer to work its already too late.

Here ya go: http://www.skingco.com/convenience/food_related/2cook_appli.htm

Not that difficult if you are good with power electronics. All a magnetron needs is the proper DC input voltage of around 3000 - 5000 volts DC at a what ever wattage it rated at.

The transformers most microwave ovens use are standard iron core 50 - 60 Hz types that are not all that fussy about waveform shape within reason.

FWIW most can be taken apart and have their primary windings rewound to work at a different voltages if you can figure out their turns ratios and the proper size of wire or sets of wire to use to handle the different current demands of the new voltage.

would a neon light tranformer work. i think the voltage is 7500-1000v. i assume the output would be dc current.

Since you have said that you are going to use it for jamming you should be aware that its use for that purpose is illegal in most jurisdictions. Don't forget that this requires knowledge of stripline fabrication techniques, plus the fact that the output of your system will blind anyone who is unfortunate enough to get in the path of the beam, screw up a pacemaker, trigger radar based door openers, burglar alarms, etc., etc.

Don't do it, the life or vision you save may be your own....

Most Police departments have given up on RADAR, it is hard on the officers. The common device is LASER. Somewhere in the infrared portion of the spectrum.

Never tried night vision goggles on it, and don't know if it can be discerned with a digital camera