Title: Traveling wave tube
Date: 1936 (approximate)
Original Format: photograph: negative
Description: This item is a long, thin glass tube with a larger cylindrical end. The thin part contains what looks like a coiled spring. The spring is attached to a copper base and some wires in the thicker end. Original wrapping labeled by Mendenhall: “Traveling wave tube/J.R. Pierce ’33/R. Kompner.”
Collection: Scientific Instruments
Caltech Archives ID: ST-ME-12
