AT131802B - Attachment for full AC mains connection operation for receiving ultrashort waves and for connection to the low-frequency amplifier of conventional radio receivers. - Google Patents
Attachment for full AC mains connection operation for receiving ultrashort waves and for connection to the low-frequency amplifier of conventional radio receivers.Info
- Publication number
- AT131802B AT131802B AT131802DA AT131802B AT 131802 B AT131802 B AT 131802B AT 131802D A AT131802D A AT 131802DA AT 131802 B AT131802 B AT 131802B
- Authority
- AT
- Austria
- Prior art keywords
- attachment
- full
- low
- connection
- frequency amplifier
- Prior art date
Links
Landscapes
- Amplifiers (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
Für den Empfang von Ultrakurzsendern wird man zweckmässigerweise Vorsatzgeräte benutzen, die grundsätzlich nur aus dem Gleichrichter bestellen und die an die Grammophonbuchsen normaler Rundfunkempfänger angeschlossen werden. Die Apparatur zum Empfang der ultrakurzen Wellen wird dadurch um den Preis des Niederfrequenzverstärkers verbilligt.
Der näehstliegende Gedanke ist der, die Betriebsspannungen des Vorsatzgerätes einem eigenen kleinen Netzanschlussgerät zu entnehmen. Der Nachteil dieser Anordnung ist der grosse Anfwand und der dadurch bedingte hohe Preis. Man hat daher vorgeschlagen, die Betriebsspannungen für das Vorsatzgerät dem angeschlossenen Empfänger zu entnehmen. Dieses Verfahren hat aber den Nachteil, dass die Heizspannung von Netzanschlussempfängern sehr schwer zugänglich ist. Ausserdem ist die zusätzliche
EMI1.2
überlastet werden.
Erfindungsgemäss werden diese Nachteile dadurch behoben, dass die Vorsatzgeräte einen eigenen kleinen Transformator zur Lieferung der Heizspannung erhalten, während sie den erforderlichen. Anodenstrom dem angeschlossenen Rundfunkempfänger entnehmen. Um dies ohne Schwierigkeiten durchführen
EMI1.3
nämlich kleiner als 2 Milliampere, ist. Dieses Verfahren hat den Vorteil, dass die zusätzliche Belastung des Netzansehlussgerätes beim angeschlossenen Rundfunkempfänger sehr gering ist. Ausserdem ist die Anodenspannmg des Rundfunkempfängers zumeist an den Lautsprecherbuchsen leicht zugänglich.
PATENT-ANSPRÜCHE :
EMI1.4
zeichnet, dass die zum Betrieb des Vorsatzgerätes erforderliche Heizleistung einem besonderen im Vorsatz- gerät vorhandenen Heiztransformator entnommen wird, während die erforderliche Anodenleistuna dem
EMI1.5
dass sein Anodenstromverbraueh kleiner als 2 Milliampere ist.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
EMI1.1
For the reception of ultrashort transmitters, it is expedient to use attachments that basically only order from the rectifier and that are connected to the gramophone sockets of normal radio receivers. The apparatus for receiving the ultrashort waves is thereby cheaper at the price of the low-frequency amplifier.
The closest idea is to take the operating voltages of the attachment from its own small power supply unit. The disadvantage of this arrangement is the large amount of effort required and the resulting high price. It has therefore been proposed that the operating voltages for the front attachment be taken from the connected receiver. However, this method has the disadvantage that the heating voltage of network connection receivers is very difficult to access. Also is the additional
EMI1.2
become overloaded.
According to the invention, these disadvantages are eliminated in that the front-end devices receive their own small transformer for supplying the heating voltage while they supply the required. Take the anode current from the connected radio receiver. To do this without difficulty
EMI1.3
namely less than 2 milliamperes. This method has the advantage that the additional load on the network connection device at the connected radio receiver is very low. In addition, the anode voltage of the radio receiver is mostly easily accessible at the speaker jacks.
PATENT CLAIMS:
EMI1.4
indicates that the heating power required to operate the attachment is taken from a special heating transformer in the attachment, while the required anode power is
EMI1.5
that its anode current consumption is less than 2 milliamperes.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE131802X | 1931-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT131802B true AT131802B (en) | 1933-02-10 |
Family
ID=29277689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT131802D AT131802B (en) | 1931-06-17 | 1932-03-04 | Attachment for full AC mains connection operation for receiving ultrashort waves and for connection to the low-frequency amplifier of conventional radio receivers. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT131802B (en) |
-
1932
- 1932-03-04 AT AT131802D patent/AT131802B/en active
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