GB248255A - Improvements in or relating to electrostatic telephones, particularly those of the loudspeaking variety, and microphones - Google Patents

Improvements in or relating to electrostatic telephones, particularly those of the loudspeaking variety, and microphones

Info

Publication number
GB248255A
GB248255A GB20453/25A GB2045325A GB248255A GB 248255 A GB248255 A GB 248255A GB 20453/25 A GB20453/25 A GB 20453/25A GB 2045325 A GB2045325 A GB 2045325A GB 248255 A GB248255 A GB 248255A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
condenser
electrostatic
loudspeaking
telephones
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
GB20453/25A
Other languages
English (en)
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.)
TRI ERGON AG
Original Assignee
TRI ERGON 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 TRI ERGON AG filed Critical TRI ERGON AG
Publication of GB248255A publication Critical patent/GB248255A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB20453/25A 1925-07-09 1925-08-14 Improvements in or relating to electrostatic telephones, particularly those of the loudspeaking variety, and microphones Expired GB248255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE248255X 1925-07-09

Publications (1)

Publication Number Publication Date
GB248255A true GB248255A (en) 1926-03-04

Family

ID=5935526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20453/25A Expired GB248255A (en) 1925-07-09 1925-08-14 Improvements in or relating to electrostatic telephones, particularly those of the loudspeaking variety, and microphones

Country Status (4)

Country Link
US (2) US1609760A (US06262066-20010717-C00424.png)
BE (1) BE331780A (US06262066-20010717-C00424.png)
FR (1) FR601399A (US06262066-20010717-C00424.png)
GB (1) GB248255A (US06262066-20010717-C00424.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6393129B1 (en) 1998-01-07 2002-05-21 American Technology Corporation Paper structures for speaker transducers

Also Published As

Publication number Publication date
BE331780A (US06262066-20010717-C00424.png)
US1609760A (en) 1926-12-07
FR601399A (fr) 1926-03-01
USRE17256E (en) 1929-04-02

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