The GL5J29 is a two anode magnetron.

The filament is visible as a rod passing through the circular hole formed by the two anodes. An output tuned circuit would be connected to the anodes with the DC power fed into a centre tap.

The wide glass tube envelope is 47 mm in diameter and, excluding the base pins, is 150 mm tall. The base is a four pin special, with two large pins and two small pins.

This exhibit was last updated on 20 January 2003