FR1240240A - Calibration device - Google Patents

Calibration device

Info

Publication number
FR1240240A
FR1240240A FR808172A FR808172A FR1240240A FR 1240240 A FR1240240 A FR 1240240A FR 808172 A FR808172 A FR 808172A FR 808172 A FR808172 A FR 808172A FR 1240240 A FR1240240 A FR 1240240A
Authority
FR
France
Prior art keywords
calibration device
calibration
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
FR808172A
Other languages
French (fr)
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.)
General Radio Co
Original Assignee
General Radio Co
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 General Radio Co filed Critical General Radio Co
Application granted granted Critical
Publication of FR1240240A publication Critical patent/FR1240240A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
FR808172A 1958-10-27 1959-10-22 Calibration device Expired FR1240240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1240240XA 1958-10-27 1958-10-27

Publications (1)

Publication Number Publication Date
FR1240240A true FR1240240A (en) 1960-09-02

Family

ID=22412316

Family Applications (1)

Application Number Title Priority Date Filing Date
FR808172A Expired FR1240240A (en) 1958-10-27 1959-10-22 Calibration device

Country Status (1)

Country Link
FR (1) FR1240240A (en)

Similar Documents

Publication Publication Date Title
CH365014A (en) Coil distribution device
CH392607A (en) Recording device
FR1231295A (en) Envider device
FR1233934A (en) Sampling device
FR1227848A (en) Recording device
BE584321A (en) Compacification device
FR1207913A (en) Handling device
FR1225978A (en) Character identification device
FR1197923A (en) Calibration device
FR1286607A (en) Auto-cooker
FR1193303A (en) Tapping device
FR1224349A (en) Electrographic recording device
FR1171839A (en) Object distribution device
FR1190323A (en) Advertising device
FR1182753A (en) Air distributor device
FR1240240A (en) Calibration device
FR1239590A (en) Medical device
FR1234389A (en) Record analyzer device
FR1196478A (en) Handling device
FR1218718A (en) Mixing device
FR1189603A (en) Mixing device
FR1178469A (en) Calibration device
BE584336A (en) Radio-diagnostic device
FR1214467A (en) Counter device
FR1190261A (en) Diving device