Artifact Details Title Vacuum tube type 5687WA Catalog Number 102732451 Type Physical object Description This object is a dual medium-mu triode packaged in a miniature glass envelope with nine pins. It comes with the original packaging by Raytheon that is in good condition except the middle flap on one end is torn off. Manufacturer Raytheon Company Place Manufactured U. S. Identifying Numbers Model number JRP-5687WA Printed in red ink around the glass envelope. Dimensions overall: 2 1/8 in x 7/8 in x 7/8 in Category Component/vacuum tube