GB771550A - Improvements in or relating to magnetically controlled electronic valves - Google Patents
Improvements in or relating to magnetically controlled electronic valvesInfo
- Publication number
- GB771550A GB771550A GB7697/55A GB769755A GB771550A GB 771550 A GB771550 A GB 771550A GB 7697/55 A GB7697/55 A GB 7697/55A GB 769755 A GB769755 A GB 769755A GB 771550 A GB771550 A GB 771550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pieces
- electrodes
- march
- rod
- pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
771,550. Electron beam apparatus. SIEMENS & HALSKE AKT.-GES. March 16, 1955 [March 16, 1954], No. 7697/55. Class 39(1). The auxiliary electrodes of the beam valve described in Specification 709,728 are designed as serrated pole-pieces of the magnetic control system. The serrations of the pole-pieces 4, 5 are disposed between the rod-shaped anode 3 and cathode 1, the focussing electrode 2, which is also rod-shaped, being at cathode potential or lower. The electrodes 4, 5 are of mumetal and bear tightly against the wall of the tube, forming a relatively small non-magnetic gap between the electrodes 4, 5 and the head-pieces 7, 8 of a pick-up sensitive to a sound recording medium 9. Figs. 4, 5 show auxiliary electrodes 12, 13 as solid blocks of ferromagnetic material with three contact pins projecting through the envelope from each block and adapted to engage the sockets of two corresponding magnetic yokes 14, 15 in an external magnetic circuit. The other projecting pins connect to the anode and filament contacts 16, 17, 18.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE771550X | 1954-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB771550A true GB771550A (en) | 1957-04-03 |
Family
ID=6678883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7697/55A Expired GB771550A (en) | 1954-03-16 | 1955-03-16 | Improvements in or relating to magnetically controlled electronic valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB771550A (en) |
-
1955
- 1955-03-16 GB GB7697/55A patent/GB771550A/en not_active Expired
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