GB246728A - Improvements in electrostatic telephones - Google Patents

Improvements in electrostatic telephones

Info

Publication number
GB246728A
GB246728A GB18526/25A GB1852625A GB246728A GB 246728 A GB246728 A GB 246728A GB 18526/25 A GB18526/25 A GB 18526/25A GB 1852625 A GB1852625 A GB 1852625A GB 246728 A GB246728 A GB 246728A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
telephones
condenser
electrostatic
rigid
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
GB18526/25A
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 GB246728A publication Critical patent/GB246728A/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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB18526/25A 1925-04-07 1925-07-20 Improvements in electrostatic telephones Expired GB246728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE246728X 1925-04-07

Publications (1)

Publication Number Publication Date
GB246728A true GB246728A (en) 1926-02-04

Family

ID=5935188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18526/25A Expired GB246728A (en) 1925-04-07 1925-07-20 Improvements in electrostatic telephones

Country Status (4)

Country Link
US (1) USRE17257E (fr)
FR (1) FR601369A (fr)
GB (1) GB246728A (fr)
NL (1) NL17774C (fr)

Also Published As

Publication number Publication date
FR601369A (fr) 1926-03-01
USRE17257E (en) 1929-04-02
NL17774C (fr)

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