GB465613A - Improvements in or relating to thermionic valve circuit arrangements - Google Patents
Improvements in or relating to thermionic valve circuit arrangementsInfo
- Publication number
- GB465613A GB465613A GB3107535A GB3107535A GB465613A GB 465613 A GB465613 A GB 465613A GB 3107535 A GB3107535 A GB 3107535A GB 3107535 A GB3107535 A GB 3107535A GB 465613 A GB465613 A GB 465613A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- frequency
- resistance
- valve
- thermionic valve
- 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
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000005751 Copper oxide Substances 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
- H04B1/1623—Supply circuits using tubes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electrotherapy Devices (AREA)
Abstract
465,613. Thermionic valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and' CLOUGH, N. H. Nov. 9, 1935, No. 31075. [Class 40 (v)] A thermionic valve arrangement handling high signal frequencies with the cathode at high potential to earth at signal frequency, as in certain television modulating arrangements, has the cathode heated by energy of a frequency higher than the signal frequency and preferably more than twice this frequency. Fig. 2 shows a modulating valve 4 having a resistance 5 in the cathode lead. Voltages across the resistance 5 are applied to effect modulation on the grids 6, 7 of the carrier amplifier through a copper oxide or similar rectifier 15 or through a floating battery or resistance network. The cathode 3 of the valve 4 is heated from an oscillator 16 through a tuned circuit 17 loosely coupled to the circuit 18 to give low capacity to earth. In a modification, Fig. 3, the cathode heating is effected by coupling to the carrier frequency input stage 11, 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3107535A GB465613A (en) | 1935-11-09 | 1935-11-09 | Improvements in or relating to thermionic valve circuit arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3107535A GB465613A (en) | 1935-11-09 | 1935-11-09 | Improvements in or relating to thermionic valve circuit arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB465613A true GB465613A (en) | 1937-05-10 |
Family
ID=10317583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3107535A Expired GB465613A (en) | 1935-11-09 | 1935-11-09 | Improvements in or relating to thermionic valve circuit arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB465613A (en) |
-
1935
- 1935-11-09 GB GB3107535A patent/GB465613A/en not_active Expired
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