GB289472A - Arrangements to protect capacitive loudspeakers against breakdown - Google Patents

Arrangements to protect capacitive loudspeakers against breakdown

Info

Publication number
GB289472A
GB289472A GB12182/28A GB1218228A GB289472A GB 289472 A GB289472 A GB 289472A GB 12182/28 A GB12182/28 A GB 12182/28A GB 1218228 A GB1218228 A GB 1218228A GB 289472 A GB289472 A GB 289472A
Authority
GB
United Kingdom
Prior art keywords
condenser
speaker
loudspeakers
arrangements
protect
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
GB12182/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB289472A publication Critical patent/GB289472A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00Electrostatic transducers
    • H04R19/02Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Protection Of Static Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB12182/28A 1927-04-28 1928-04-26 Arrangements to protect capacitive loudspeakers against breakdown Expired GB289472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE289472X 1927-04-28

Publications (1)

Publication Number Publication Date
GB289472A true GB289472A (en) 1929-06-06

Family

ID=6059837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12182/28A Expired GB289472A (en) 1927-04-28 1928-04-26 Arrangements to protect capacitive loudspeakers against breakdown

Country Status (4)

Country Link
US (1) US1737872A (enExample)
FR (1) FR653356A (enExample)
GB (1) GB289472A (enExample)
NL (1) NL28231C (enExample)

Also Published As

Publication number Publication date
FR653356A (fr) 1929-03-20
NL28231C (enExample)
US1737872A (en) 1929-12-03

Similar Documents

Publication Publication Date Title
GB289472A (en) Arrangements to protect capacitive loudspeakers against breakdown
AU131521A (en) Improvements inlow and high frequency telephone systems
GB538111A (en) Improvements in and relating to electrical communication systems
AU70339A (en) Arrangements for switching over from normal to spare amplifiers in electrical signalling systems
CA228877A (en) Toll trunking circuit for machine switching telephone systems
CA208865A (en) Telephone toll circuit
CA208247A (en) Telephone trunk circuit
CA236648A (en) Trunk circuit for telephone systems
CA235656A (en) Substation telephone circuit
CA221157A (en) Low and high frequency telephone system
CA219437A (en) Telephone circuit
AU2044524A (en) Improved circuit arrangements for automatic selectors used in telephone systems
AU475021A (en) Relay circuit arrangements for use more particularly in telephone or like systems
AU1684320A (en) Improvements in high frequency electrical signalling systems
AU114018B2 (en) Circuit arrangements for high frequency systems employing critical transit time electron discharge devices
CA367702A (en) Electron discharge amplifier circuit
CA209112A (en) Anti-side-tone substation circuit
CA209340A (en) Substation circuit
GB292261A (en) Improvements in circuit interrupting devices particularly applicable for telephone systems
CA236894A (en) Substation telephone circuit
CA243886A (en) Substation telephone circuit
CA243504A (en) Sub-station telephone circuit
AU172926A (en) Improved circuit arrangements for automatic switches used in telephone systems
CA207865A (en) Phonograph table cabinet
AU105426B2 (en) Improvements in circuit arrangements for electrical signalling systems