CH115969A - Membran-Lautsprecher für Radioapparate, Grammophone usw. - Google Patents

Membran-Lautsprecher für Radioapparate, Grammophone usw.

Info

Publication number: CH115969A
Authority: CH; Switzerland
Prior art keywords: gramophones; radios; membrane loudspeakers; loudspeakers; membrane
Prior art date: 1925-10-15

Application number

Other languages

English (en)

Inventor

Aktiengesellschaft Rit Uhlmann

Original Assignee

Ritter & Uhlmann Aktiengesells

Filing date

1925-10-15

Publication date

1926-07-16

1925-10-15 Application filed by Ritter & Uhlmann Aktiengesells filed Critical Ritter & Uhlmann Aktiengesells

1926-07-16 Publication of CH115969A publication Critical patent/CH115969A/de

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

CH115969D 1925-10-15 Membran-Lautsprecher für Radioapparate, Grammophone usw. CH115969A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DER65755D DE445043C (de)			Lautsprecher

Publications (1)

Publication Number	Publication Date
CH115969A true CH115969A (de)	1926-07-16

Family

ID=7412706

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH115969D CH115969A (de)		1925-10-15	Membran-Lautsprecher für Radioapparate, Grammophone usw.

Country Status (2)

Country	Link
CH (1)	CH115969A (de)
DE (1)	DE445043C (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE942036C (de) *	1948-10-02	1956-04-26	Siemens Ag	Druckkammerlautsprecher mit geschachtelten Trichtern

0
- DE DER65755D patent/DE445043C/de not_active Expired
1925
- 1925-10-15 CH CH115969D patent/CH115969A/de unknown

Also Published As

Publication number	Publication date
DE445043C (de)	1927-06-03

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