CH171891A - Small transmitter for wireless telegraphy. - Google Patents
Small transmitter for wireless telegraphy.Info
- Publication number
- CH171891A CH171891A CH171891DA CH171891A CH 171891 A CH171891 A CH 171891A CH 171891D A CH171891D A CH 171891DA CH 171891 A CH171891 A CH 171891A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- small transmitter
- wireless telegraphy
- telegraphy
- wireless
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
- H04B1/034—Portable transmitters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Description
Kleinsender für drahtlose Telegraphie.
EMI0001.0002
Die <SEP> Forderung <SEP> nach <SEP> kleinen, <SEP> sehr <SEP> leichten
<tb> Funktelegraphiesendern <SEP> wurde <SEP> bis <SEP> beute <SEP> da durch <SEP> erschwert, <SEP> dass <SEP> die <SEP> Anodenbatterie <SEP> ein
<tb> zwei- <SEP> oder <SEP> dreifaches <SEP> Gewicht <SEP> den <SEP> übrigen
<tb> Teilen <SEP> des <SEP> Kleinsenders <SEP> gegenüber <SEP> aufwies.
<tb> Dieser <SEP> Nachteil <SEP> wird <SEP> durch <SEP> die <SEP> vorliegende
<tb> Erfindung, <SEP> von <SEP> der <SEP> in <SEP> den <SEP> Fig.
<SEP> 1 <SEP> und <SEP> 2 <SEP> ein
<tb> Ausführungsbeispiel <SEP> dargestellt <SEP> ist, <SEP> behoben.
<tb> Statt <SEP> der <SEP> schweren <SEP> Anodenbatterie <SEP> ist <SEP> parallel
<tb> zum <SEP> Heizkreis <SEP> (Batterie <SEP> F) <SEP> ein <SEP> Sucnmer <SEP> (E)
<tb> geschaltet, <SEP> der <SEP> die <SEP> Stromstösse <SEP> der <SEP> Primär wicklung <SEP> eines <SEP> Transformators <SEP> (C) <SEP> zuführt.
<tb> Hier <SEP> wird <SEP> nun <SEP> die <SEP> Spannung <SEP> hinauftrans formiert <SEP> und <SEP> der <SEP> Röhre <SEP> (A) <SEP> zugeführt.
<SEP> Die
<tb> übrige <SEP> Schaltung <SEP> ist <SEP> die <SEP> normale <SEP> Dreipunkt-
EMI0001.0003
schalteng, <SEP> wobei <SEP> die <SEP> Rückkopplung <SEP> auf <SEP> das
<tb> Gitter <SEP> der <SEP> Röhre <SEP> über <SEP> den <SEP> Kondensator <SEP> (G)
<tb> auf <SEP> die <SEP> Gitterspule <SEP> (B) <SEP> wirkt. <SEP> Das <SEP> Anten nensystem <SEP> ist <SEP> ein <SEP> Dipol <SEP> Bi <SEP> und <SEP> H2.
Small transmitter for wireless telegraphy.
EMI0001.0002
The <SEP> requirement <SEP> for <SEP> small, <SEP> very <SEP> light ones
<tb> Radio telegraphy transmitters <SEP> were <SEP> to <SEP> prey <SEP> because <SEP> made it difficult <SEP> that <SEP> the <SEP> anode battery <SEP>
<tb> two- <SEP> or <SEP> triple <SEP> weight <SEP> the other <SEP>
<tb> Share <SEP> of the <SEP> small transmitter <SEP> opposite <SEP> showed.
<tb> This <SEP> disadvantage <SEP> becomes <SEP> through <SEP> the <SEP> present
<tb> Invention, <SEP> from <SEP> the <SEP> in <SEP> the <SEP> Fig.
<SEP> 1 <SEP> and <SEP> 2 <SEP>
<tb> Exemplary embodiment <SEP> shown <SEP> is, <SEP> corrected.
<tb> Instead of <SEP> the <SEP> heavy <SEP> anode battery <SEP> is <SEP> in parallel
<tb> to <SEP> heating circuit <SEP> (battery <SEP> F) <SEP> on <SEP> Sucnmer <SEP> (E)
<tb> switched, <SEP> of <SEP> the <SEP> current impulses <SEP> of the <SEP> primary winding <SEP> of a <SEP> transformer <SEP> (C) <SEP>.
<tb> Here <SEP> <SEP> is now <SEP> the <SEP> voltage <SEP> is transformed up <SEP> and <SEP> is fed to the <SEP> tube <SEP> (A) <SEP>.
<SEP> The
<tb> remaining <SEP> circuit <SEP> is <SEP> the <SEP> normal <SEP> three-point
EMI0001.0003
switching, <SEP> where <SEP> the <SEP> feedback <SEP> to <SEP> the
<tb> grid <SEP> of the <SEP> tube <SEP> via <SEP> the <SEP> capacitor <SEP> (G)
<tb> on <SEP> the <SEP> grid coil <SEP> (B) <SEP> acts. <SEP> The <SEP> antenna system <SEP> is <SEP> a <SEP> dipole <SEP> Bi <SEP> and <SEP> H2.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH171891T | 1933-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH171891A true CH171891A (en) | 1934-09-15 |
Family
ID=4423448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH171891D CH171891A (en) | 1933-11-25 | 1933-11-25 | Small transmitter for wireless telegraphy. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH171891A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6640742B1 (en) | 1999-11-17 | 2003-11-04 | David Grupp | Device for producing signal tones by means of chimes suspended from a shared oscillating carrier plate |
-
1933
- 1933-11-25 CH CH171891D patent/CH171891A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6640742B1 (en) | 1999-11-17 | 2003-11-04 | David Grupp | Device for producing signal tones by means of chimes suspended from a shared oscillating carrier plate |
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