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ID number:  BIRRC-P0906.1
Institution:  Research and Cultural Collections
Named collection:  Historic Physics Collection
Artist / Maker:  Amperex
Title / Object name:  Cavity magnetron for microwave oven
Object type:  Cavity magnetron
Place made:  North America: USA
Date made:  Pre 1990
Materials:  Metals and ceramics
Measurements:  13 x 9.5 x 12.5 cm
BIRRC-P0906.1.jpg

Cavity magnetron designed to fit end of 20th century domestic microwave cooker. Frequency probably about 2.5 GHz (wavelength 1.2 cm) and power 600 W. Compact design with the magnetic field produced by strong ceramic magnets built close around the anode block. The high voltage supply and cathode heater are in the box at the bottom of the image. There are large fins for air-cooling by an external fan. The microwaves are delivered to the cooking chamber via the metal stub projecting through an insulator from the top of the magnetron.

Inscriptions / Translations:  Amperex. A North American Philips Co. OM-75 9300 922 10XX0 Made in U.S.A.

1 Related Objects

BIRRC-P0906.2.jpg
Cavity magnetron for microwave oven - cut open
Panasonic
BIRRC-P0906.2
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