DE873414C - Resonant circuit coil for ultra-short wave devices - Google Patents

Resonant circuit coil for ultra-short wave devices

Info

Publication number
DE873414C
DE873414C DES10715D DES0010715D DE873414C DE 873414 C DE873414 C DE 873414C DE S10715 D DES10715 D DE S10715D DE S0010715 D DES0010715 D DE S0010715D DE 873414 C DE873414 C DE 873414C
Authority
DE
Germany
Prior art keywords
resonant circuit
ultra
circuit coil
short wave
wave devices
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
Application number
DES10715D
Other languages
German (de)
Inventor
Franz Dipl-Ing Ulbrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES10715D priority Critical patent/DE873414C/en
Application granted granted Critical
Publication of DE873414C publication Critical patent/DE873414C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00Variable inductances or transformers of the signal type
    • H01F21/02Variable inductances or transformers of the signal type continuously variable, e.g. variometers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Description

Die Erfindung bezieht sich auf feinstufig veränderbare Schwingkreis.spulen für Sender, Empfänger, Verstärker und Sperrkreise im UKW-Gebiet. Bei derartigen Geräten, beispielsweise bei UKW-Empfängern, ist ein Zwei- bzw. Dreipunktabgleich erwünscht. Hierzu ist neben neiner Abstimmung .durch veränderbare Kapazitäten auch eine Abstimmung durch möglichst feinstufig veränderhare Schwingkreisspulen .erforderlich. Dias bekannte Vexfahren, Induktivitäten dadurch abzugleichen, daß ein Massekern zur Erhöhung der Induktivität Moder ein eisenloser Kern zur Verringerung der Induktivität in, eine Spule eingetaucht wird, stößt auf Schwierigkeiten bei Spulen, die im UKW-Gebiet Anwendung finden, denn diese bestehen nur aus einem Drahtring (1/. Windung). Bei ihnen ist nur eine lose Verkoppelung zwischen denn. eingetauchten: Kern und der Spule möglich, so, daß der jeweilige Abgleichbemeich für viele Zwecke unzureichend ist.The invention relates to oscillating circuit coils which can be changed in fine steps for transmitters, receivers, amplifiers and trap circuits in the VHF area. With such Devices, for example with VHF receivers, is a two- or three-point adjustment he wishes. In addition to no coordination, there is also variable capacities A coordination using oscillating circuit coils that can be changed as finely as possible is required. The well-known method of balancing inductances by using a ground core to increase the inductance Moderate an ironless core to reduce the inductance Immersing a coil in it encounters difficulties with coils operating in the VHF area Use, because these only consist of a wire ring (1 /. Turn). at them is just a loose coupling between then. immersed: core and the Coil possible, so that the respective adjustment level is insufficient for many purposes is.

Bei der S,chwingkreisspu1e nach der Erfindung ist nun ein feinstufiger Abgleich in anderer Weise ermöglicht, dabei besteht der VorteiI, daß der Spulenkörp.er in @einfachex Weise durch Stanzen herstellhar ist.In the case of the oscillating circuit coil according to the invention, there is now a finely graduated Alignment made possible in a different way, with the advantage that the coil body can be produced in @einfachex way by punching.

Gemäß der Erfindung besteht die Schwingkreisspule für UKW-Geräte aus einem vorzugsweise U-förmigen Flachleiter, der eine Anzahl Löcher aufweist, in die Metallstifte einsetzbar, z. B. Madenschrauben einschraubbar sind.According to the invention, the resonant circuit coil for VHF devices consists of a preferably U-shaped flat conductor which has a number of holes into which Metal pins can be used, e.g. B. grub screws are screwed.

In der .Zeichnung ist ein Ausführungsbeispiel nach der Erfindung dargestellt, und zwar zeigt die Fig. z eine Schwingkreisspule nach der Erfindung, die eine Anzahl Löcher i aufweist. Ein feinstufiger Abgleich läßt sich nun dadurch erzielen, daß Metallstifte in diese Löcher i reingesetzt werden. Wie die Fig. z erkennen läßt, sind auf den Schenkeln z und 3 bereits je zwei Löcher durch einen Metallstift ausgefüllt. In der Fig. 3 schließlich sind in alle vorhandenen Löcher Metallstifte eingesetzt. Es empfiehlt sich, insbesondere S.chraublöcher vorzusehen und diese entsprechend der gewünschten Induktivitätsänderung durch Magenschrauben zu verschließen.In the .Drawing an embodiment of the invention is shown, namely FIG. Z shows an oscillating circuit coil according to the invention, which has a number of holes i. A fine adjustment can now be achieved by inserting metal pins into these holes i. As FIG leaves. Realize z, z are on the legs and 3 already j e two holes filled by a metal pin. Finally, in FIG. 3, metal pins are inserted into all existing holes. It is advisable to provide screw holes in particular and to close them with gastric screws according to the desired change in inductivity.

Claims (1)

PATENTANSPRUCH:-Schwingkreisspule für UKW-Geräte, dadurch gekennzeichnet, daß sie aus einem vorzugsweise U-förmigen Flachleiter besteht, der eine Anzahl . von Löchern ,aufweist, in die Metallstifte einsetzbar, z. B. Madenschrauben einschraubbar sind.PATENT CLAIM: - Resonant circuit coil for VHF devices, characterized in that it consists of a preferably U-shaped flat conductor which has a number. of holes, can be inserted into the metal pins, e.g. B. screw-in grub screws are.
DES10715D 1944-09-16 1944-09-16 Resonant circuit coil for ultra-short wave devices Expired DE873414C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES10715D DE873414C (en) 1944-09-16 1944-09-16 Resonant circuit coil for ultra-short wave devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES10715D DE873414C (en) 1944-09-16 1944-09-16 Resonant circuit coil for ultra-short wave devices

Publications (1)

Publication Number Publication Date
DE873414C true DE873414C (en) 1953-04-13

Family

ID=7473421

Family Applications (1)

Application Number Title Priority Date Filing Date
DES10715D Expired DE873414C (en) 1944-09-16 1944-09-16 Resonant circuit coil for ultra-short wave devices

Country Status (1)

Country Link
DE (1) DE873414C (en)

Similar Documents

Publication Publication Date Title
DE1789025A1 (en) Procedure for setting an inductive device
DE873414C (en) Resonant circuit coil for ultra-short wave devices
DE684228C (en) Magnetic core for high frequency coils
DE428628C (en) Loop antenna divided into switchable windings or groups of windings
DE890070C (en) Circuit for the transition from a balanced high frequency arrangement to a high frequency unbalanced arrangement, or vice versa
DE599906C (en) Coupling element which contains two or more coils with a variable degree of coupling
DE857648C (en) Coil-like line structure with constantly distributed line constants
DE966146C (en) Self-oscillating mixer stage with additive mixing
AT133701B (en) Switching device for band filters.
DE744474C (en) High frequency coil with a ground core
DE872082C (en) Conical grinding variometer for high frequency devices
DE634027C (en) Adjustable wave filter with constant absolute bandwidth
DE967947C (en) Coil for ultra-short waves
DE691989C (en) Process for tuning and testing of selective means, especially of band filters for carrier frequency systems
AT152099B (en) High or intermediate frequency amplifier circuit.
DE969214C (en) Variometer with adjustable inductively coupled short-circuit conductor
DE716712C (en) Goniometer bearing system
DE1915760C3 (en) Adaptation circuit designed as a bandpass filter
DE573041C (en) Arrangement for changing the coupling in receivers with two wave ranges
DE905277C (en) Capacitive voltage divider made up of at least two capacitors connected in series
DE662826C (en) Receiver with a simulation of the inductivity and capacitance of the antenna
DE464357C (en) Coils with variable mutual inductance
DE1279183B (en) Shielding for coils whose turns are in one plane
DE895789C (en) Bearing arrangement with cross frame and goniometer
DE1257990B (en) Band stop for electrical oscillations