This exhibit is a Heil tube. These devices used both magnetic fields (as used in magnetrons) with velocity modulation (as used in klystrons) to form a microwave oscillator. It is described as a coaxial line wide AFC oscillator.

The valve is 35 mm in diameter and, excluding the IO base pins, is 100 mm tall. The top flange is 72 mm in diameter.

This exhibit was last updated on 07 January 2003