| 其他書名 | An Introduction to the Physical Fundamentals, Properties, Designs and Applications of Radio-receiver and Power-amplifier Valves Covering the Technical Development Reached Up to December, 1947 |
| 出版 | N.V. Philips' Gloeilampenfabrieken, Technical and Scientific Literature Department, 1949 |
| URL | http://books.google.com.hk/books?id=CAchAAAAMAAJ&hl=&source=gbs_api |