DE628687C - Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor - Google Patents

Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor

Info

Publication number
DE628687C
DE628687C DET44086D DET0044086D DE628687C DE 628687 C DE628687 C DE 628687C DE T44086 D DET44086 D DE T44086D DE T0044086 D DET0044086 D DE T0044086D DE 628687 C DE628687 C DE 628687C
Authority
DE
Germany
Prior art keywords
resistance
volume control
pressure
musical instruments
dependent resistor
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
DET44086D
Other languages
German (de)
Inventor
Walter Germann
Oskar Sala
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Priority to DET44086D priority Critical patent/DE628687C/en
Application granted granted Critical
Publication of DE628687C publication Critical patent/DE628687C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00Details of electrophonic musical instruments
    • G10H1/02Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/04Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • G10H1/053Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
    • G10H1/055Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements
    • G10H1/0558Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements using variable resistors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Conductive Materials (AREA)

Description

Als druckabhängiger Widerstand ausgebildete Lautstärkeregelanordnung für elektrische Musikinstrumente Die bisher bekannten druckabhängigen Widerstände zur Lautstärkeregelung bei elektrischen Musikinstrumenten bestanden entweder aus in geeigneten Behältern untergebrachtem Graphitpulver oder aus einem Xesselstoff, auf den mit Gummilösung vermengte, fein gemahlene Knochenkohle aufgetragen worden ist. Die ersterwähnten Widerstände haben den Nachteil, daß bei der Rückkehr des drückenden Elementes in die Ruhelage der Widerstand nicht auf den ursprünglichen Wert zurückgeht; ferner neigen diese Widerstände zum Rauschen (Mikrophonrauschen). Der Knochenkohle-Nesselstoff-Widerstand ist schon wesentlich besser, jedoch tritt auch hierbei infolge der Reibung leicht ein Rauschen auf, welches infolge Hartwerdens des Bindemittels allmählich unerträglich wird. Die Lebensdauer dieses Widerstandes ist verhältnismäßig gering. Die gleichmäßige Herstellung ist schwierig.Volume control arrangement designed as a pressure-dependent resistor for electrical musical instruments The previously known pressure-dependent resistances for volume control in electrical musical instruments either consisted of graphite powder housed in suitable containers or made of a xessel material, was applied to the finely ground charcoal mixed with rubber solution is. The first-mentioned resistors have the disadvantage that when the pressing element in the rest position, the resistance does not change to the original Value declines; Furthermore, these resistors tend to be noisy (microphone noise). The carbon-nettle resistance is much better, but it occurs Here too, due to the friction, there is a slight noise, which is due to the hardening the binder gradually becomes unbearable. The lifespan of this resistor is relatively low. It is difficult to manufacture uniformly.

Die Nachteile der bekannten Widerstände werden gemäß der Erfindung dadurch völlig behoben, daß eine elektrisch leitende Flüssigkeit als Widerstandsmaterial dient, die von einem geeigneten Tragkörper aufgesogen wird, wobei bereits bei der Herstellung des Widerstandes dafür Sorge zu tragen ist, daß die Flüssigkeit nicht verdunstet. Dies kann entweder durch Flüssigkeiten mit hochliegendem Siedepunkt oder mittels zusätzlicher hygroskopischer Stoffe, durch welche der Feuchtigkeitsgehalt auf dem zulässigen Wert gehalten wird, oder auf konstruktivem Wege durch hermetische Einkapselung der Kontakt-und Widerstandsanordnung erzielt werden. Als Tragkörper kommen möglichst feinfasrige Stoffe zur Anwendung (Textilstoffe, Löschpapier, Schwamm). Als Leiter eignen sich allgemein alle Flüssigkeiten mit nicht zu geringer elektrischer Leitfähigkeit, insbesondere Leitungswasser und Üle, z. B. Glycerin.The disadvantages of the known resistors are according to the invention completely eliminated by the fact that an electrically conductive liquid is used as the resistance material serves, which is absorbed by a suitable support body, already with the Making the resistance care is to ensure that the liquid does not evaporates. This can either be through liquids with a high boiling point or by means of additional hygroscopic substances, through which the moisture content is kept at the permissible value, or in a constructive way through hermetic Encapsulation of the contact and resistor assembly can be achieved. As a support body If possible, fine-fiber materials are used (textiles, blotting paper, sponge). In general, all liquids with not too low an electrical power are suitable as conductors Conductivity, especially tap water and oils, e.g. B. glycerin.

Die Wirkungsweise des neuen Widerstandes ist folgende: Im ungedruckten Zustand ist die Flüssigkeit im Gewebe feinst verteilt. Der Leitungswiderstand ist daher sehr hoch. - Sobald der Widerstand gedrückt wird, wird etwas Flüssigkeit ausgepreßt. Diese Flüssigkeit bietet einen direkten Stromdurchgang bei verhältnismäßig geringem Widerstand.The mode of operation of the new resistor is as follows: In the unprinted State, the fluid is finely distributed in the tissue. The line resistance is therefore very high. - As soon as the resistance is pressed, some liquid is squeezed out. This liquid provides direct current passage at relatively little Resistance.

Die Abbildung veranschaulicht ein Ausführungsbeispiel des Erfindungsgegenstandes. Zwischen die Elektroden r und 2 ist, hermetisch durch eine Gummihülle 3 gegen die Außenluft abgeschlossen, der Widerstand q. angeordnet. Bei der Bewegung der beweglichen Elektrode r auf die feste Elektrode 2 zu wird der Widerstand 4 verändert. Als besonders vorteilhaft hat sich für den Widerstand Wollstoff, Flanell oder Trikot erwiesen, die mit Glycerin getränkt worden sind. -- ----.-Der neue Widerstand zeichnet sich -durch völlige Rauschfreiheit aus. Die Herstellung ist außerordentlich einfach. Ebenso läßt sich der Widerstand bei zu großer Änderung der Widerstandsverhältnisse leicht und schnell regenerieren. Der Regelbereich ist wesentlich größer als bei den obenerwähnten Knochenkohle-Nesselstoff-Widerständen. Die Widerstandsänderung ist gleichmäßiger.The figure illustrates an exemplary embodiment of the subject matter of the invention. Between the electrodes r and 2 is hermetically sealed by a rubber sleeve 3 against the Outside air closed, the resistance q. arranged. When moving the movable Electrode r towards the fixed electrode 2, the resistance 4 is changed. as Woolen material, flannel or tricot has proven to be particularly beneficial for resistance proven that have been soaked with glycerine. - ----.- The new resistance is drawing - by being completely free from noise. It is extremely easy to manufacture. The resistance can also be reduced if the resistance ratios change too much regenerate easily and quickly. The control range is much larger than for the above-mentioned charcoal-nettle resistances. The change in resistance is more even.

Claims (3)

PATENTANSPRÜCHE: i. Als druckabhängiger Widerstand ausgebildete Lautstärkeregelanordnung für elektrische Musikinstrumente, dadurch g e kennzei ichnet, daß der Widerstand aus ,einer von feinem Tragkörper aufgesogenen, elektrisch leitenden Flüssigkeit gebildet ist, die an sich oder- infolge zusätzlicher hygroskopischer Mittel oder infolge der Anordnung des Widerstandes in einem geschlossenen Gehäuse schwer, praktisch nicht verdunstet. PATENT CLAIMS: i. Volume control arrangement designed as a pressure-dependent resistor for electrical musical instruments, thereby indicating that the resistance made of an electrically conductive liquid absorbed by a fine carrier body is formed, which in itself or as a result of additional hygroscopic means or difficult, practical due to the arrangement of the resistor in a closed housing does not evaporate. 2. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß als Tragkörper feinfasrige Stoffe (Textilstoffe, Löschpapier, Schwamm) dienen. 2. Arrangement according to claim i, characterized in that as Carrying body fine-fiber materials (textiles, blotting paper, sponge) are used. 3. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß die als Widerstandsmaterial benutzte Flüssigkeit verhältnismäßig große elektrische Leitfähigkeit besitzt, insbesondere Leitungswasser oder Öl ist. q.. Anordnung nach Anspruch i bis 3, dadurch gekennzeichnet, daß der Widerstand aus einem mit Glycerin getränkten Wollstoff, Flanell oder Trikot besteht.3. Arrangement according to claim i, characterized in that the used as resistance material Liquid has relatively high electrical conductivity, in particular Tap water or oil is. q .. Arrangement according to claim i to 3, characterized in that that the resistance consists of a woolen material soaked in glycerine, flannel or tricot consists.
DET44086D 1934-06-23 1934-06-23 Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor Expired DE628687C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET44086D DE628687C (en) 1934-06-23 1934-06-23 Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET44086D DE628687C (en) 1934-06-23 1934-06-23 Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor

Publications (1)

Publication Number Publication Date
DE628687C true DE628687C (en) 1936-04-08

Family

ID=7561661

Family Applications (1)

Application Number Title Priority Date Filing Date
DET44086D Expired DE628687C (en) 1934-06-23 1934-06-23 Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor

Country Status (1)

Country Link
DE (1) DE628687C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017448B (en) * 1952-01-18 1957-10-10 Oskar Sala Amplitude regulator for electrical musical instruments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017448B (en) * 1952-01-18 1957-10-10 Oskar Sala Amplitude regulator for electrical musical instruments

Similar Documents

Publication Publication Date Title
DE628687C (en) Volume control arrangement for electrical musical instruments designed as a pressure-dependent resistor
DE1490454B2 (en) MINIATURE POTENTIOMETER
DE2401914A1 (en) ELECTRICAL SWITCHING DEVICE ACTUATABLE DEPENDING ON A PRESSURE
DE2443836C3 (en) Quiver-shaped receptacle for tube pen tips
DE1523430A1 (en) Thermally sensitive power medium
DE2611572A1 (en) CONTROL DEVICE FOR HAND DEVICES
DE1161591B (en) Static speaker
DE345381C (en) Telephone device with a regulating resistor provided in the housing of the microphone, especially for the hearing impaired
DE955918C (en) Electro-thermal device for performing mechanical work
AT151568B (en) Movable pick-up contact for adjustable resistors.
DE475570C (en) Electrical high resistance
DE567939C (en) Electrical resistance, in which the connection parts are embedded in the element made of resistance material, and method for its manufacture
DE472110C (en) Ionization chamber for radiation measurement
DE711233C (en) Current collector for adjustable electrical resistances, inductivities u. like
DE3843580A1 (en) Measuring mechanism with crossed moving coils
CH381318A (en) High voltage measuring resistor
DE537121C (en) Rheostat
DE1940598A1 (en) Connector for electrical devices
US1034104A (en) Conductive ink.
DE559818C (en) Device for measuring the speed and amount of flowing media
DE600936C (en) Electrical resistance body
DE960213C (en) Shift knob with high load capacity
DE662544C (en) Brush holders for electrical machines
DE319674C (en) Method for measuring the effects of weather and for regulating the heat supply in heating systems and like
DE372585C (en) Electrical fuse in which the current is interrupted by the evaporation of liquid metal in a capillary tube