GB657312A - Improvements in or relating to thermionic valve amplifiers - Google Patents
Improvements in or relating to thermionic valve amplifiersInfo
- Publication number
- GB657312A GB657312A GB13741/48A GB1374148A GB657312A GB 657312 A GB657312 A GB 657312A GB 13741/48 A GB13741/48 A GB 13741/48A GB 1374148 A GB1374148 A GB 1374148A GB 657312 A GB657312 A GB 657312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- valves
- grid
- resistance
- anode
- 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 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 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
- H03F3/42—Amplifiers with two or more amplifying elements having their DC paths in series with the load, the control electrode of each element being excited by at least part of the input signal, e.g. so-called totem-pole amplifiers
- H03F3/44—Amplifiers with two or more amplifying elements having their DC paths in series with the load, the control electrode of each element being excited by at least part of the input signal, e.g. so-called totem-pole amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
657,312. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 20, 1948, No. 13741. [Class 40 (vi)] A two-stage wide-band amplifier which is linear and of low output impedance comprises two pairs of valves V1, V2 and V3, V4, respectively, each pair being in series connection across the H.T. supply. The signal is applied to the grid of the valve V2, which feeds the other valve V1 in the first pair via a coupling condenser K1 connected to a point on a resistance RI between the valves; a tap on the resistance R1 provides bias for the valve VI. A further point between the valves-as shown, the cathode of valve V1-is coupled to the grid of valve V3 of the second pair. The anode of this valve is coupled to the grid of the remaining valve V4 via a condenser K3, the output of the amplifier being taken from a point between the valves V3, V4. Overall feed-back may be applied by connection of a resistance between the output terminal and the grid of the valve V2, Fig. 3 (not shown); alternatively a cathodefollower stage may precede the valve V2, Fig. 2 (not shown), having its anode fed from the anode of the valve V4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB276293X | 1948-05-20 | ||
| GB50149X | 1949-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB657312A true GB657312A (en) | 1951-09-19 |
Family
ID=26239528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13741/48A Expired GB657312A (en) | 1948-05-20 | 1948-05-20 | Improvements in or relating to thermionic valve amplifiers |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2661398A (en) |
| CH (1) | CH276293A (en) |
| FR (1) | FR985674A (en) |
| GB (1) | GB657312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1029878B (en) * | 1955-04-01 | 1958-05-14 | Philips Nv | Circuit for amplification by means of two tubes through which the supply current flows in series |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2783314A (en) * | 1952-05-29 | 1957-02-26 | John H Reaves | Square-wave amplifier circuits |
| US2820140A (en) * | 1954-01-05 | 1958-01-14 | Rca Corp | Code converter |
| US2764643A (en) * | 1954-03-23 | 1956-09-25 | Frank H Mcintosh | Oscillators |
| US3028451A (en) * | 1956-11-01 | 1962-04-03 | Automatic Elect Lab | Transistor amplifier |
| US3038125A (en) * | 1958-04-18 | 1962-06-05 | Philips Corp | Negative feedback circuit |
| US3049672A (en) * | 1958-10-20 | 1962-08-14 | Sperry Rand Corp | Voltage generating circuit having an output trigger voltage that rises abruptly at apredetermined time |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2358428A (en) * | 1940-09-07 | 1944-09-19 | Emi Ltd | Thermionic valve amplifier circuit arrangement |
| US2310342A (en) * | 1940-11-29 | 1943-02-09 | Rca Corp | Balanced direct and alternating current amplifiers |
| US2438960A (en) * | 1940-11-29 | 1948-04-06 | Rca Corp | Balanced amplifier |
| US2543819A (en) * | 1948-05-14 | 1951-03-06 | John E Williams | Push-pull differential electronic amplifier |
-
1948
- 1948-05-20 GB GB13741/48A patent/GB657312A/en not_active Expired
-
1949
- 1949-02-28 US US78804A patent/US2661398A/en not_active Expired - Lifetime
- 1949-03-16 CH CH276293D patent/CH276293A/en unknown
- 1949-05-04 FR FR985674D patent/FR985674A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1029878B (en) * | 1955-04-01 | 1958-05-14 | Philips Nv | Circuit for amplification by means of two tubes through which the supply current flows in series |
Also Published As
| Publication number | Publication date |
|---|---|
| FR985674A (en) | 1951-07-23 |
| US2661398A (en) | 1953-12-01 |
| CH276293A (en) | 1951-06-30 |
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