Thyratron tube type 2D27
||Printed in silver ink around the glass envelope.
||Stamped in olive ink around the glass envelope.
||Written vertically in green ink on the glass envelope.
overall: 2 in x 3/4 in x 3/4 in
This object is a tetrode-type xenon gas thyratron packaged in a miniature glass envelope with seven pins.
Gift of the Digital Equipment Corporation