<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31299393</termId><termName>Plumbicons (TM)</termName><termType>PT</termType><termNote><![CDATA[ Proprietary name for a type of television camera tube similar to a vidicon, but in which the photoconductive layer of the signal plate is of lead monoxide; noted for their ability to form images in low light. The plumbicon allowed the development of the color television camera.These have been used in cameras intended for surveillance. ]]></termNote><termCreatedDate>2026-03-30 20:20:20</termCreatedDate><relation><relationType>UF</relationType><termId>31299394</termId><termName>Plumbicon (TM)</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31297615</termId><termName>brand name objects</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31413129</termId><termName>television camera tubes</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31439032</termId><termName>vidicons</termName><termType>PT</termType></relation></term>  </Zthes>