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KR940005187A
(ko)
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헤드폰 장치
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CN101534467B
(zh)
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电容式麦克风
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BE456745A
(Direct)
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US7586081B2
(en)
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Output impedance varying circuit
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US8249274B2
(en)
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Audio amplifier with timing circuit to power down bias control and amplifying circuits in sequence
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US3525812A
(en)
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Transducer circuit and method of operation
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US20090274319A1
(en)
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Audio amplifier
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US3434067A
(en)
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Push-pull amplifiers
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CH380972A
(fr)
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Circuit régulateur
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CH150112A
(fr)
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Amplificateur thermo-ionique pour dispositifs photo-électriques.
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BE369921A
(Direct)
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JP4861117B2
(ja)
|
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ミュート回路、それを用いたオーディオ信号増幅回路ならびに電子機器
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CH497104A
(fr)
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Pastille microphonique à transducteur piézo-résistif
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BE378051A
(Direct)
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RU1811646C
(ru)
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Способ преобразовани широкополосного электрического сигнала в акустический
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US4628281A
(en)
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Feedback amplifier with reduced distortion
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FR2579843A1
(fr)
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Amplificateur audio frequences avec compensation du bruit ambiant, principalement pour l'automobile
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BE354674A
(Direct)
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Hitchcock
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SUPER-FIDELITY AUDIO AMPLIFIER |
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JPH05122782A
(ja)
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音響再生装置
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BE440473A
(Direct)
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BE371803A
(Direct)
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BE420370A
(Direct)
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BE387877A
(Direct)
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BE358912A
(Direct)
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