GB397910A - Improvements in or relating to alternating current supply systems for sound transmitting installations - Google Patents

Improvements in or relating to alternating current supply systems for sound transmitting installations

Info

Publication number
GB397910A
GB397910A GB6354/32A GB635432A GB397910A GB 397910 A GB397910 A GB 397910A GB 6354/32 A GB6354/32 A GB 6354/32A GB 635432 A GB635432 A GB 635432A GB 397910 A GB397910 A GB 397910A
Authority
GB
United Kingdom
Prior art keywords
condenser
transmitter
relating
alternating current
current supply
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
GB6354/32A
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.)
ELAC Electroacustic GmbH
Original Assignee
ELAC Electroacustic GmbH
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 ELAC Electroacustic GmbH filed Critical ELAC Electroacustic GmbH
Publication of GB397910A publication Critical patent/GB397910A/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

397,910. Signalling by audible signals. ELECTROACUSTIC GES., Werk Ravensberg, Kiel, Germany. March 2, 1932, No. 6354. Convention date, March 17, 1931. [Class 118 (ii).] A condenser is connected in the circuit of an electromagnetic sound-transmitter energized by an alternating-current generator, the condenser being of such a capacity that the current leads the terminal voltage of the generator. The condenser may be placed either in series or in parallel with the sound transmitter. In the arrangement shown in the Figure, the condenser 3 is placed in the circuit of the transmitter 2 which is supplied from the alternator 1. The transmitter is supplied with a direct magnetizing current from a source 4 through a choke 5. A variable inductance may also be provided to adjust the angle of lead.
GB6354/32A 1931-03-17 1932-03-02 Improvements in or relating to alternating current supply systems for sound transmitting installations Expired GB397910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE397910X 1931-03-17

Publications (1)

Publication Number Publication Date
GB397910A true GB397910A (en) 1933-09-04

Family

ID=6397284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6354/32A Expired GB397910A (en) 1931-03-17 1932-03-02 Improvements in or relating to alternating current supply systems for sound transmitting installations

Country Status (1)

Country Link
GB (1) GB397910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136247B (en) * 1960-02-06 1962-09-06 Rau Swf Autozubehoer Power connection for a plate horn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136247B (en) * 1960-02-06 1962-09-06 Rau Swf Autozubehoer Power connection for a plate horn

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