GB352357A - Improvements in and relating to high frequency signalling systems - Google Patents
Improvements in and relating to high frequency signalling systemsInfo
- Publication number
- GB352357A GB352357A GB33181/30A GB3318130A GB352357A GB 352357 A GB352357 A GB 352357A GB 33181/30 A GB33181/30 A GB 33181/30A GB 3318130 A GB3318130 A GB 3318130A GB 352357 A GB352357 A GB 352357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- circuit
- load circuit
- capacity
- condenser
- 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
- 230000011664 signaling Effects 0.000 title 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000003071 parasitic effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
- H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
-
- 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
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Lasers (AREA)
Abstract
352,357. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Lynn, L. H. ; 115, Elmer Avenue. Schenectady, New York, U.S.A.) Nov. 4, 1930, No. 33181. Convention date, Nov. 4, 1929. [Class 40 (v).] A thermionic generating system comprises two valves in push-pull with the output circuit of a third valve coupled to their input circuit, the load circuit of the single valve being balanced with respect to the cathode by connecting an intermediate point on the load circuit to the cathode and providing a balancing capacity between one side of the load circuit and the cathode. The tuned load circuit 4 of the screen-grid high frequency amplifier 1 has the mid point of its tuning condenser 6 connected to earth, as is the cathode. The capacity to earth of the upper part of the inductance 5, consisting of the anode-cathode capacity and condenser 15, is balanced by connecting the lower end of 5 to the cathode through a balancing condenser 16. This ensures that the opposed-phase voltage fed to the push-pull amplifiers 2, 3 is equal, ensuring stability and freedom from parasitic oscillations in circuit 4. The output circuit 13 may be tuned to a harmonic of the frequency of circuit 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US404722A US1899580A (en) | 1929-11-04 | 1929-11-04 | Signal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB352357A true GB352357A (en) | 1931-07-09 |
Family
ID=23600760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33181/30A Expired GB352357A (en) | 1929-11-04 | 1930-11-04 | Improvements in and relating to high frequency signalling systems |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1899580A (en) |
| DE (1) | DE545614C (en) |
| FR (1) | FR39197E (en) |
| GB (1) | GB352357A (en) |
| NL (2) | NL31213C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2806208A (en) * | 1951-09-29 | 1957-09-10 | Columbia Broadcasting Syst Inc | Vacuum tube voltmeter |
| US2856522A (en) * | 1953-09-16 | 1958-10-14 | Bendix Aviat Corp | Phase detector |
| US2901557A (en) * | 1955-02-07 | 1959-08-25 | Bendix Aviat Corp | Oscillator and amplifier circuit |
-
0
- NL NL52539D patent/NL52539B/xx unknown
- NL NL31213D patent/NL31213C/xx active
-
1929
- 1929-11-04 US US404722A patent/US1899580A/en not_active Expired - Lifetime
-
1930
- 1930-10-30 DE DE1930545614D patent/DE545614C/en not_active Expired
- 1930-11-04 GB GB33181/30A patent/GB352357A/en not_active Expired
- 1930-11-04 FR FR39197D patent/FR39197E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL31213C (en) | |
| FR39197E (en) | 1931-10-21 |
| DE545614C (en) | 1932-03-03 |
| NL52539B (en) | |
| US1899580A (en) | 1933-02-28 |
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