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Hitachi Ltd
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Hitachi Ltd
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Publication of DE2409624A1publicationCriticalpatent/DE2409624A1/de
H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
Fernsehempfaenger mit einer betriebsartumschaltvorrichtung zur wahlweisen zufuehrung eines empfangenen fernsehsignals bzw. eines signals von ausserhalb des fernsehempfaengers (von einem videorecorder usw. her) zu seiner kathodenstrahlroehre
Schaltungsanordnung zur kombinierten Abstimmung und automatischen Frequenzregelung eines Empfängers mit Kapazitätsdioden und Halbleiterkörper zur Verwendung in dieser Schaltungsanordnung
Elektrischer Schalter, der waehrend der Dauer eines von aussen zu-gefuehrten kurzzeitigen Spannungsimpulses einem Punkte einer elektrischen Schaltung Strom zu- oder von ihm abfuehrt