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Firme W H Joens & Co
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Firme W H Joens & Co
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Application filed by Firme W H Joens & CofiledCriticalFirme W H Joens & Co
Application grantedgrantedCritical
Publication of FR896646ApublicationCriticalpatent/FR896646A/fr
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
H03F3/40—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with tubes only
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Engineering & Computer Science
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Power Engineering
(AREA)
FR896646D1942-07-301943-07-21Amplificateur de mesure pour tensions continues
ExpiredFR896646A
(fr)