GB303020A - Terminal repeater device for the reproduction of sound independent of frequency - Google Patents

Terminal repeater device for the reproduction of sound independent of frequency

Info

Publication number
GB303020A
GB303020A GB38004/28A GB3800428A GB303020A GB 303020 A GB303020 A GB 303020A GB 38004/28 A GB38004/28 A GB 38004/28A GB 3800428 A GB3800428 A GB 3800428A GB 303020 A GB303020 A GB 303020A
Authority
GB
United Kingdom
Prior art keywords
loud
valves
speaker
reproduction
frequency
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
GB38004/28A
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 GB303020A publication Critical patent/GB303020A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

303,020. Ardenne, M. von. Dec. 22, 1927, [Convention date]. Systems for transmitting music; amplifying systems.-In order to obtain uniform reproduction throughout the frequency range, output valves of different characteristics are arranged in parallel and operate a single loud-speaker or separate loud-speakers having similar or different characteristics. In one arrangement, an electrodynamic and an electro-static loud-speaker are connected to valves of low and high impedance respectively. In the arrangement shown in Fig. 3, output valves R1, R2 of low and high impedance respectively, are connected in parallel and operate separate windings of a single loud-speaker Ll. The relative output of the valves may be controlled by a variable resistance W in the grid circuit of one of them.
GB38004/28A 1927-12-22 1928-12-22 Terminal repeater device for the reproduction of sound independent of frequency Expired GB303020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE303020X 1927-12-22

Publications (1)

Publication Number Publication Date
GB303020A true GB303020A (en) 1930-04-22

Family

ID=6109270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38004/28A Expired GB303020A (en) 1927-12-22 1928-12-22 Terminal repeater device for the reproduction of sound independent of frequency

Country Status (1)

Country Link
GB (1) GB303020A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024361A (en) * 1958-04-18 1962-03-06 Philips Corp Tuning and overload indicator circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024361A (en) * 1958-04-18 1962-03-06 Philips Corp Tuning and overload indicator circuit

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