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4hv.org :: Forums :: Electromagnetic Radiation
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Information/specifications for cavity magnetron MA-2807?

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V3rge
Fri Mar 04 2011, 01:41AM Print
V3rge Registered Member #3253 Joined: Wed Sept 29 2010, 12:21AM
Location: New Zealand
Posts: 13
I was given this magnetron a while back and could not find any information online about it, so im wondering if anyone here will recognise it and be able to tell me any specs of it. It is obviously quite an old piece and it was told it was pulled out of a naval radar system but cant be sure of that, it was in naval stores for many years before being disposed. I know little about magnetrons but always wanted to do some microwave experiments and may read up on it in future.

It says on it:
DNT P/N 21242
Microwave Associates
MA-2807
Made in U.S.A.

Here are some pictures:
Link2
Link2
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Proud Mary
Fri Mar 04 2011, 12:48PM
Proud Mary Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
I'd say it was a grounded anode cavity resonator magnetron, which would have been excited by negative-going pulses on the cathode.

The cavity size would have been tunable over a narrow range by means of the screwdriver slot in the end of the tuning rod.

I'd expect this little device to have a peak output power distinctly less than 1kW, with an average power of a few hundred milliwatts.
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