GB398704A - Improvements in and relating to low frequency amplifiers of radio receivers - Google Patents
Improvements in and relating to low frequency amplifiers of radio receiversInfo
- Publication number
- GB398704A GB398704A GB776/33A GB77633A GB398704A GB 398704 A GB398704 A GB 398704A GB 776/33 A GB776/33 A GB 776/33A GB 77633 A GB77633 A GB 77633A GB 398704 A GB398704 A GB 398704A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- grid
- resistance
- relating
- jan
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
Landscapes
- Superheterodyne Receivers (AREA)
- Amplifiers (AREA)
Abstract
398,704. Valve circuits for wireless reception. SEIBT AKT.-GES., DR. G., 29, Kolonnenstrasse, Sch÷neberg, Berlin. Jan. 9, 1933, No. 776. Convention date, Jan. 20, 1932. [Class 40 (v).] A tone-control circuit for a wireless receiver, particularly intended to cut out heterodyne whistles and other disturbances, comprises a high resistance r connected between the grid of a low-frequency amplifier e and the coupling to the preceding valve a, and a variable condenser k connected between grid and cathode of the low-frequency amplifier. As shown in the Figure, the inter-valve coupling is of the resistance-capacity type, and bias is applied to the grid of the valve e through a leak resistance h. An auto-transformer may replace the plate resistance w, the valve plate being tapped to an intermediate point on the coil. The valve e may have a screening-grid, and may be the output valve:
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE398704X | 1932-01-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB398704A true GB398704A (en) | 1933-09-21 |
Family
ID=6397392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB776/33A Expired GB398704A (en) | 1932-01-20 | 1933-01-09 | Improvements in and relating to low frequency amplifiers of radio receivers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB398704A (en) |
-
1933
- 1933-01-09 GB GB776/33A patent/GB398704A/en not_active Expired
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