GB248076A - Improved means for producing magnification with a four electrode valve and circuits therefor - Google Patents
Improved means for producing magnification with a four electrode valve and circuits thereforInfo
- Publication number
- GB248076A GB248076A GB28461/24A GB2846124A GB248076A GB 248076 A GB248076 A GB 248076A GB 28461/24 A GB28461/24 A GB 28461/24A GB 2846124 A GB2846124 A GB 2846124A GB 248076 A GB248076 A GB 248076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- valve
- improved means
- electrode
- circuits therefor
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
248,076. Marconi's Wireless Telegraph Co., Ltd., and Gill, E. W. B. Nov. 27,. 1924. Thermionic amplifiers and detectors.-A fourelectrode thermionic valve A, which may be a detector or a high or low frequency amplifier, is arranged so that the inner grid 2 is charged through a choke 1 and serves as the output electrode. The output, as shown, is applied through a condenser 3 to the grid of a, valve B provided with a leak resistance 4. The relation between the inner grid current and the outer grid potential are analysed in the Specification and the conditions set out to obtain a magnification substantially independent of the potential applied to the inner grid. A number of four-electrode valves may be employed in cascade.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28461/24A GB248076A (en) | 1924-11-27 | 1924-11-27 | Improved means for producing magnification with a four electrode valve and circuits therefor |
| US71492A US1861231A (en) | 1924-11-27 | 1925-11-25 | Means for producing magnification with a four electrode valve and circuits therefor |
| FR610049D FR610049A (en) | 1924-11-27 | 1925-11-27 | Enhancements to Amplifier Devices Incorporating a Four-Electrode Valve and Related Circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28461/24A GB248076A (en) | 1924-11-27 | 1924-11-27 | Improved means for producing magnification with a four electrode valve and circuits therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB248076A true GB248076A (en) | 1926-03-01 |
Family
ID=10275984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28461/24A Expired GB248076A (en) | 1924-11-27 | 1924-11-27 | Improved means for producing magnification with a four electrode valve and circuits therefor |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1861231A (en) |
| FR (1) | FR610049A (en) |
| GB (1) | GB248076A (en) |
-
1924
- 1924-11-27 GB GB28461/24A patent/GB248076A/en not_active Expired
-
1925
- 1925-11-25 US US71492A patent/US1861231A/en not_active Expired - Lifetime
- 1925-11-27 FR FR610049D patent/FR610049A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR610049A (en) | 1926-08-28 |
| US1861231A (en) | 1932-05-31 |
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