GB220488A - Improvements in or relating to thermionic valve couplings - Google Patents
Improvements in or relating to thermionic valve couplingsInfo
- Publication number
- GB220488A GB220488A GB2416223A GB2416223A GB220488A GB 220488 A GB220488 A GB 220488A GB 2416223 A GB2416223 A GB 2416223A GB 2416223 A GB2416223 A GB 2416223A GB 220488 A GB220488 A GB 220488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- megohms
- resistance
- valves
- detector
- 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
- 230000008878 coupling Effects 0.000 title abstract 2
- 238000010168 coupling process Methods 0.000 title abstract 2
- 238000005859 coupling reaction Methods 0.000 title abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0138—Electrical filters or coupling circuits
- H03H7/0146—Coupling circuits between two tubes, not otherwise provided for
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
220,488. Lloyd, H., Homer, E. B., and Dilger, A. Sept. 28, 1923. Thermionic amplifiers and detectors.-A resistance inter-valve coupling for a three-valve detector and amplifier comprises a resistance 10 of about 5 megohms in the plate circuit, of the first valve 1 a grid leak 14 of about 20 megohms and a plate resistance 11 of about 3 megohms for the second valve 2 and a grid leak 15 of 10-15 megohms for the third valve 3, which has the telephones 18 or a loud speaker in its plate circuit. The input condenser 17 and the inter-valve condensers 6, 9 are of 0.0003 microfarad capacity. The first valve acts as a detector and amplifier and the other valves as amplifiers only. It is stated that the valves 1, 2 function below the lower bend of their characteristic curves. The high tension battery 12 may be of 60-100 volts, and the grid leaks 14, 15 are connected to the negative side of the filament battery 13. Specification 129,313 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2416223A GB220488A (en) | 1923-09-28 | 1923-09-28 | Improvements in or relating to thermionic valve couplings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2416223A GB220488A (en) | 1923-09-28 | 1923-09-28 | Improvements in or relating to thermionic valve couplings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB220488A true GB220488A (en) | 1924-08-21 |
Family
ID=10207362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2416223A Expired GB220488A (en) | 1923-09-28 | 1923-09-28 | Improvements in or relating to thermionic valve couplings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB220488A (en) |
-
1923
- 1923-09-28 GB GB2416223A patent/GB220488A/en not_active Expired
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