大塚久著：日本の真空管製造黎明期資料
- General Description
- An Example of Test Report for Earliest Japanese Tubes
- Development in TEC/Toshiba
- (003W-1) “Receiving Tubes”, pp. 424-437, Part I of “Radio Equipment” from “50 Years of Tokyo Electric Company” 1940 in Japanese (English version by H. Ohtsuka)- 17 pages.
- (003W-2) “Transmitting Tubes”, pp. 437-445, Part II of the above (English version by H. Ohtsuka)- 8 pages.
- (003W-3) “Tube Making Record” by T. Umeda, General Foreman, Receiving Tube Dept., TEC, 1976 in Japanese (English version by H. Ohtsuka)- 3 pages
- (001L) List of Early Receiving Tube Development in TEC/ Toshiba (from Denshi Gihoh by Electron Div., Toshiba, 1978 in Japanese, English version by H. Ohtsuka)- 2 pages.
- (002L) List of Early Transmitting Tube Development on TEC/ Toshiba (from “50 Year of Tokyo Electric Company”, 1940 in Japanese, English version by H. Ohtsuka)- 1 page.
- Development in JRC
- (004W) “History of Vacuum Tube (I)- Before the War”, pp. 280-285, Chapter 16 of “55 Year Step of Japan Radio Company”, 1971 in Japanese (English version by H. Ohtsuka)- 7 pages.
- (003L) List: Early Receiving Tube Development in Japan Radio (Nihon Musen), Dec.1923 and Nov. 1924 listing in Japanese (English version by H. Ohtsuka)- 2 pages.
- (004L) List: Early Transmitting Tube Development in Japan Radio (Nihon Musen), Same as above(English version by H. Ohtsuka)- 2 pages.
- (005L) List: Transmitting Triode by Japan Radio (Nihon Musen), p. 283, Chapter 16: History of Vacuum Tube (I) as of 1940 in Japanese (English version by H. Ohtsuka)- 1 page.
- (006L) List: Rectifier Tube by Japan Radio (Nihon Musen), JRC’s Catalog No. 297, Sept. 1933 in Japanese (English version by H. Ohtsuka)- 1 page
- Development in NEC
- Information on Other Tube Makers
- Address and Logo of Tube Makers
- Rating of Japanease Receiving Tubes
- Rating of Japanease Transmitting Tubes
- (013L) Rating of Early Japanese Transmitting Triodes (Air Cooled)- 6 pages: not including new numbering system introduced in 1950
- (014L) Rating of Early Japanese Transmitting Triodes (Water Cooled)- 2 pages: also up to 1950.
- (015L) Rating of Early Japanese Transmitting Tetrodes and Pentodes (Air Cooled)- 3 pages
- Photos of Japanease Tubes
- Conclusion