GB377711A - Improvements in and relating to valve receivers for wireless telephony - Google Patents

Improvements in and relating to valve receivers for wireless telephony

Info

Publication number
GB377711A
GB377711A GB12425/31A GB1242531A GB377711A GB 377711 A GB377711 A GB 377711A GB 12425/31 A GB12425/31 A GB 12425/31A GB 1242531 A GB1242531 A GB 1242531A GB 377711 A GB377711 A GB 377711A
Authority
GB
United Kingdom
Prior art keywords
valve
relating
wireless telephony
april
valve receivers
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
GB12425/31A
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.)
IDEAL WERKE AG
Original Assignee
IDEAL WERKE 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 IDEAL WERKE AG filed Critical IDEAL WERKE AG
Publication of GB377711A publication Critical patent/GB377711A/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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

377,711. Valve amplifying circuits. IDEAL WERKE AKT. - GES. FœR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Berlin. April 27, 1931, No. 12425. Convention date, April 25, 1930. Drawings to Specification. [Class 40 (v).] In a valve amplifier using a high-resistance output valve of the screen-grid or pentode type, the loud-speaker coils are wound with wire of high resistance such as constantan.
GB12425/31A 1930-04-25 1931-04-27 Improvements in and relating to valve receivers for wireless telephony Expired GB377711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE377711X 1930-04-25

Publications (1)

Publication Number Publication Date
GB377711A true GB377711A (en) 1932-07-27

Family

ID=6344455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12425/31A Expired GB377711A (en) 1930-04-25 1931-04-27 Improvements in and relating to valve receivers for wireless telephony

Country Status (1)

Country Link
GB (1) GB377711A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009004246A1 (en) * 2009-01-07 2010-07-15 Heiko Kersten Dynamic electro-mechanical speaker, particularly for use in electronic systems e.g. tube systems, broadband audio systems, comprises high-end audio amplifier, where high-ohm-loudspeaker is provided with tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009004246A1 (en) * 2009-01-07 2010-07-15 Heiko Kersten Dynamic electro-mechanical speaker, particularly for use in electronic systems e.g. tube systems, broadband audio systems, comprises high-end audio amplifier, where high-ohm-loudspeaker is provided with tubes

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