DE500302C - Openwork solid counter electrode for electrostatic sound reproduction or recording devices - Google Patents

Openwork solid counter electrode for electrostatic sound reproduction or recording devices

Info

Publication number
DE500302C
DE500302C DEV21266D DEV0021266D DE500302C DE 500302 C DE500302 C DE 500302C DE V21266 D DEV21266 D DE V21266D DE V0021266 D DEV0021266 D DE V0021266D DE 500302 C DE500302 C DE 500302C
Authority
DE
Germany
Prior art keywords
counter electrode
openwork
sound reproduction
recording devices
strips
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
DEV21266D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEV21266D priority Critical patent/DE500302C/en
Application granted granted Critical
Publication of DE500302C publication Critical patent/DE500302C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00Electrostatic transducers

Description

Hierzu 1 Blatt Zeichnungen 1 sheet of drawings

BERLIN. GEDRUCKT IN »ER nEICHSDfiUCKEÜElBERLIN. PRINTED IN »ER NEICHSDfiUCKEÜEl

Claims (4)

Patentansprüche:Patent claims: 1. Durchbrochene feste Gegenelektrode für elektrostatische Schallwiedergabeoder Aufnahmeapparate, dadurch gekennzeichnet, daß sie in ihrer ganzen Stärke rostartig durch Rillen unterbrochen ist, so daß nur in bestimmten Abständen Streifen stehen bleiben, die jedoch durch besondere Stege abgestützt werden.1. Openwork solid counter electrode for electrostatic sound reproduction or Recording apparatus, characterized in that it is interrupted in its entire thickness by rust-like grooves, so that strips only remain at certain intervals, but these are supported by special webs. 2. Gegenelektrode nach Anspruch 1, dadurch gekennzeichnet, daß die Streifen an ihrer Rückseite von Querstegen getragen und versteift werden.2. Counter electrode according to claim 1, characterized in that the strips are supported and stiffened on their back by crossbars. 3. Gegenelektrode nach Anspruch 1, g0 dadurch gekennzeichnet, daß sie aus geraden und aus schlangenlinienartig gebogenen Streifen besteht, die miteinander durch Löten oder Schweißen zu einem stabilen Ganzen verbunden sind.3. Counter electrode according to claim 1, g 0, characterized in that it consists of straight and serpentine curved strips which are connected to one another by soldering or welding to form a stable whole. 4. Gegenelektrode nach Anspruch 1 und 3, dadurch gekennzeichnet, daß die Streifen spiralig aufgewickelt sind.4. counter electrode according to claim 1 and 3, characterized in that the Strips are spirally wound.
DEV21266D Openwork solid counter electrode for electrostatic sound reproduction or recording devices Expired DE500302C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV21266D DE500302C (en) Openwork solid counter electrode for electrostatic sound reproduction or recording devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV21266D DE500302C (en) Openwork solid counter electrode for electrostatic sound reproduction or recording devices

Publications (1)

Publication Number Publication Date
DE500302C true DE500302C (en) 1930-06-20

Family

ID=7579058

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV21266D Expired DE500302C (en) Openwork solid counter electrode for electrostatic sound reproduction or recording devices

Country Status (1)

Country Link
DE (1) DE500302C (en)

Similar Documents

Publication Publication Date Title
DE2225131A1 (en) SPRING COLUMN MADE FROM INDIVIDUAL SPRINGS
DE500302C (en) Openwork solid counter electrode for electrostatic sound reproduction or recording devices
DE1407503B2 (en) SPRAY ELECTRODES FOR ELECTROSTATIC DUST COLLECTORS
GB504146A (en) Improvements in or relating to composite sheet metal structures and methods of fabricating the same
DE905550C (en) Strain gauge
DE853899C (en) Report and register sheet
DE564218C (en) Paper support plate with side edge guides for the paper
DE416023C (en) Solder strips for telephone purposes
DE149819C (en)
DE1043280B (en) Collector sheet for albums, loose-leaf books or the like.
DE2055670A1 (en) Information carrier card
DE514283C (en) Core body for wreaths
DE701394C (en) Spring for oscillating systems
DE350189C (en) Device for joining the ends of wide cinema films with several rows of images
DE643631C (en) Supply roll for separated film lengths
US1804813A (en) Educational device
AT153316B (en) Device for separating seams.
DE560799C (en) Holding device for attaching photographic images, surface representations, postage stamps or the like on album sheets, display boards or the like.
DE559935C (en) Packaging device for replacement batteries consisting of a cardboard tube
DE539991C (en) Hollow rope with a hollow, tubular core for electrical overhead lines
DE517592C (en) Device for generating hair waves with heating
DE504172C (en) Spring coupling for variable capacitors in wireless devices
DE570950C (en) Device on relay cards for fastening the cards in tubular holders that serve as spacers
DE929848C (en) Cover rail for loose-leaf binders with perforations to accommodate the metal strips used to line up the documents
DE300583C (en)