RO84788B1 - Sonerie muzicala - Google Patents

Sonerie muzicala

Info

Publication number
RO84788B1
RO84788B1 RO112455A RO11245583A RO84788B1 RO 84788 B1 RO84788 B1 RO 84788B1 RO 112455 A RO112455 A RO 112455A RO 11245583 A RO11245583 A RO 11245583A RO 84788 B1 RO84788 B1 RO 84788B1
Authority
RO
Romania
Prior art keywords
transistor
bell
musical bell
electronique
inductor
Prior art date
Application number
RO112455A
Other languages
English (en)
Romanian (ro)
Other versions
RO84788A2 (fr
Inventor
Carmen Ionescu
Original Assignee
Institutul De Cercetare Stiintifica Si Inginerie Tehnologica
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 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica filed Critical Institutul De Cercetare Stiintifica Si Inginerie Tehnologica
Priority to RO112455A priority Critical patent/RO84788B1/ro
Publication of RO84788A2 publication Critical patent/RO84788A2/fr
Publication of RO84788B1 publication Critical patent/RO84788B1/ro

Links

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
RO112455A 1983-11-01 1983-11-01 Sonerie muzicala RO84788B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO112455A RO84788B1 (ro) 1983-11-01 1983-11-01 Sonerie muzicala

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO112455A RO84788B1 (ro) 1983-11-01 1983-11-01 Sonerie muzicala

Publications (2)

Publication Number Publication Date
RO84788A2 RO84788A2 (fr) 1984-07-17
RO84788B1 true RO84788B1 (ro) 1984-09-30

Family

ID=20113815

Family Applications (1)

Application Number Title Priority Date Filing Date
RO112455A RO84788B1 (ro) 1983-11-01 1983-11-01 Sonerie muzicala

Country Status (1)

Country Link
RO (1) RO84788B1 (fr)

Also Published As

Publication number Publication date
RO84788A2 (fr) 1984-07-17

Similar Documents

Publication Publication Date Title
US2759179A (en) Ringing circuit
GB1140777A (en) Electronic audible alarm devices
KR880014446A (ko) 마이크로콤퓨터의 클록생성회로
RO84788B1 (ro) Sonerie muzicala
GB1174458A (en) Signal Generating Circuits.
GB918275A (en) Improvements in or relating to signalling arrangements in standing micro-telephone instruments
SE9703036D0 (sv) A decoupling capacitor
GB971802A (en) Signalling system for substation apparatus
KR820001698B1 (ko) 톤 링거 회로
ES335053A1 (es) Disposicion de circuito para recibir señales electricas.
GB754713A (en) Improvements in or relating to transistor oscillator circuits
GB1059606A (en) A ringer
GB1336353A (en) Frequency generators
SE8102406L (sv) Elektronisk tonalstrare
KR940006617Y1 (ko) 홈 오토메이션의 콜 신호 처리 장치
GB1074666A (en) Improvements in or relating to harmonic generators
RO83115B1 (ro) Instrument muzical electronic
JPS56120251A (en) Generating system for call tone and alarm tone
GB754187A (en) Improvements in or relating to transistor pulse oscillators
JPS5490906A (en) Telephone set
JPS6413483A (en) Semiconductor integrated circuit device
JPS5429996A (en) Electronic tone generator
GB828227A (en) Alarm signal generator
GB1074048A (en) Improvements in or relating to electrical harmonic generating circuits
JPS63276354A (ja) 電話機におけるト−ンリンガ周波数発生装置